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Spatially anisotropic S=1 square-lattice antiferromagnet with single-ion anisotropy realized in a Ni(II) pyrazine-n,n′-dioxide coordination polymer (2023)
Journal Article
Manson, J. L., Pajerowski, D. M., Donovan, J. M., Twamley, B., Goddard, P. A., Johnson, R., …Manuel, P. (2023). Spatially anisotropic S=1 square-lattice antiferromagnet with single-ion anisotropy realized in a Ni(II) pyrazine-n,n′-dioxide coordination polymer. Physical Review B, 108(9), Article 094425. https://doi.org/10.1103/physrevb.108.094425

Muon-spin relaxation investigation of magnetic bistability in a crystalline organic radical compound (2023)
Journal Article
Hernández-Melían, A., Huddart, B., Pratt, F., Blundell, S., Mills, M., Young, H., …Lancaster, T. (2023). Muon-spin relaxation investigation of magnetic bistability in a crystalline organic radical compound. Journal of Physics and Chemistry of Solids, 181, https://doi.org/10.1016/j.jpcs.2023.111493

We present the results of a muon-spin relaxation (𝜇+SR) investigation of the crystalline organic radicalcompound 4-(2-benzimidazolyl)-1,2,3,5-dithiadiazolyl (HbimDTDA), in which we demonstrate the hystereticmagnetic switching of the system that takes... Read More about Muon-spin relaxation investigation of magnetic bistability in a crystalline organic radical compound.

Many-body quantum muon effects and quadrupolar coupling in solids (2023)
Journal Article
Gomilšek, M., Pratt, F. L., Cottrell, S. P., Clark, S. J., & Lancaster, T. (2023). Many-body quantum muon effects and quadrupolar coupling in solids. Communications Physics, 6(1), https://doi.org/10.1038/s42005-023-01260-7

Strong quantum zero-point motion (ZPM) of light nuclei and other particles is a crucial aspect of many state-of-the-art quantum materials. However, it has only recently begun to be explored from an ab initio perspective, through several competing app... Read More about Many-body quantum muon effects and quadrupolar coupling in solids.

DFT + μ: Density functional theory for muon site determination (2023)
Journal Article
Blundell, S., & Lancaster, T. (2023). DFT + μ: Density functional theory for muon site determination. Applied Physics Reviews, 10(2), Article 021316. https://doi.org/10.1063/5.0149080

The technique of muon spin rotation (μSR) has emerged in the last few decades as one of the most powerful methods of obtaining local magnetic information. To make the technique fully quantitative, it is necessary to have an accurate estimate of where... Read More about DFT + μ: Density functional theory for muon site determination.

μSR investigation of magnetism in κ−(ET)2X : Antiferromagnetism (2023)
Journal Article
Huddart, B., Lancaster, T., Blundell, S., Guguchia, Z., Taniguchi, H., Clark, S., & Pratt, F. (2023). μSR investigation of magnetism in κ−(ET)2X : Antiferromagnetism. Physical Review Research, 5(1), Article 013015. https://doi.org/10.1103/physrevresearch.5.013015

We study magnetism in the κ-(ET)2X family of charge-transfer salts using implanted muon spectroscopy in conjunction with detailed ab initio electronic structure calculations using density functional theory (DFT). ET stands for the electron donor mole... Read More about μSR investigation of magnetism in κ−(ET)2X : Antiferromagnetism.

MuFinder: A program to determine and analyse muon stopping sites (2022)
Journal Article
Huddart, B., Hernández-Melián, A., Hicken, T., Gomilšek, M., Hawkhead, Z., Clark, S., …Lancaster, T. (2022). MuFinder: A program to determine and analyse muon stopping sites. Computer Physics Communications, 280, https://doi.org/10.1016/j.cpc.2022.108488

Significant progress has recently been made in calculating muon stopping sites using density functional theory. The technique aims to address two of the most common criticisms of the muon-spin spectroscopy (μ+SR) technique, namely, where in the sampl... Read More about MuFinder: A program to determine and analyse muon stopping sites.

Radio-Frequency Manipulation of State Populations in an Entangled Fluorine-Muon-Fluorine System (2022)
Journal Article
Billington, D., Riordan, E., Salman, M., Margineda, D., Gill, G. J., Cottrell, S. P., …Giblin, S. R. (2022). Radio-Frequency Manipulation of State Populations in an Entangled Fluorine-Muon-Fluorine System. Physical Review Letters, 129(7), https://doi.org/10.1103/physrevlett.129.077201

Entangled spin states are created by implanting muons into single-crystal LiY0.95Ho0.05F4 to form a cluster of correlated, dipole-coupled local magnetic moments. The resulting states have well-defined energy levels allowing experimental manipulation... Read More about Radio-Frequency Manipulation of State Populations in an Entangled Fluorine-Muon-Fluorine System.

Muon-Nitrogen Quadrupolar Level Crossing Resonance in a Charge Transfer Salt (2022)
Journal Article
Berlie, A., Pratt, F. L., Huddart, B. M., Lancaster, T., & Cottrell, S. P. (2022). Muon-Nitrogen Quadrupolar Level Crossing Resonance in a Charge Transfer Salt. Journal of Physical Chemistry C, 126(17), 7529-7534. https://doi.org/10.1021/acs.jpcc.2c00617

Although muons are primarily regarded as a local spin probe, they can also access the charge state of an atom or molecule via quadrupolar level crossing resonance (QLCR) spectroscopy. We use Li+TCNQ– (TCNQ = 7,7,8,8-tetracyanoquinodimethane), a simpl... Read More about Muon-Nitrogen Quadrupolar Level Crossing Resonance in a Charge Transfer Salt.

Magnetism in the Néel-skyrmion host GaV4S8 under pressure (2022)
Journal Article
Hicken, T., Wilson, M., Holt, S., Khassanov, R., Lees, M., Gupta, R., …Lancaster, T. (2022). Magnetism in the Néel-skyrmion host GaV4S8 under pressure. Physical Review B, 105(13), https://doi.org/10.1103/physrevb.105.134414

We present magnetization and muon-spin spectroscopy measurements of Néel-skyrmion host GaV4S8 under the application of hydrostatic pressures up to P = 2.29 GPa. Our results suggest that the magnetic phase diagram is altered with pressure via a reduct... Read More about Magnetism in the Néel-skyrmion host GaV4S8 under pressure.

Energy-gap driven low-temperature magnetic and transport properties in Cr1/3MS2(M = Nb, Ta) (2022)
Journal Article
Hicken, T., Hawkhead, Z., Wilson, M., Huddart, B., Hall, A., Balakrishnan, G., …Lancaster, T. (2022). Energy-gap driven low-temperature magnetic and transport properties in Cr1/3MS2(M = Nb, Ta). Physical Review B, 105(6), Article L060407. https://doi.org/10.1103/physrevb.105.l060407

The helimagnets Cr1/3MS2 (M = Nb or Ta) have attracted renewed attention due to the discovery of a chiral soliton lattice (CSL) stabilized in an applied magnetic field, but reports of unusual low-temperature transport and magnetic properties in this... Read More about Energy-gap driven low-temperature magnetic and transport properties in Cr1/3MS2(M = Nb, Ta).

Probing the magnetic polaron state in the ferromagnetic semiconductor HgCr2Se4 with muon-spin spectroscopy and resistance-fluctuation measurements (2022)
Journal Article
Mitschek, M., Hicken, T. J., Yang, S., Wilson, M. N., Pratt, F. L., Wang, C., …Müller, J. (2022). Probing the magnetic polaron state in the ferromagnetic semiconductor HgCr2Se4 with muon-spin spectroscopy and resistance-fluctuation measurements. Physical Review B, 105(6), Article 064404. https://doi.org/10.1103/physrevb.105.064404

Combined resistance noise and muon-spin relaxation (μSR) measurements of the ferromagnetic semiconductor HgCr2Se4 suggest a degree of magnetoelectric coupling and provide evidence for the existence of isolated magnetic polarons. These form at elevate... Read More about Probing the magnetic polaron state in the ferromagnetic semiconductor HgCr2Se4 with muon-spin spectroscopy and resistance-fluctuation measurements.

Muon sites in PbF2 and YF3: Decohering environments and the role of anion Frenkel defects (2021)
Journal Article
Wilkinson, J., Pratt, F., Lancaster, T., Baker, P., & Blundell, S. (2021). Muon sites in PbF2 and YF3: Decohering environments and the role of anion Frenkel defects. Physical Review B, 104(22), Article L220409. https://doi.org/10.1103/physrevb.104.l220409

Muons implanted into ionic fluorides often lead to a so-called F– μ –F state, in which the time evolution of the muon spin contains information about the geometry and nature of the muon site. Nuclei more distant from the muon than the two nearest-nei... Read More about Muon sites in PbF2 and YF3: Decohering environments and the role of anion Frenkel defects.

Anomalous magnetic exchange in a dimerized quantum magnet composed of unlike spin species (2021)
Journal Article
Curley, S., Huddart, B., Kamenskyi, D., Coak, M., Williams, R., Ghannadzadeh, S., …Goddard, P. (2021). Anomalous magnetic exchange in a dimerized quantum magnet composed of unlike spin species. Physical Review B, 104(21), Article 214435. https://doi.org/10.1103/physrevb.104.214435

We present here a study of the magnetic properties of the antiferromagnetic dimer material CuVOF 4 ( H 2 O ) 6 ⋅ H 2 O , in which the dimer unit is composed of two different S = 1 / 2 species, Cu(II) and V(IV). An applied magnetic field of μ 0 H c 1... Read More about Anomalous magnetic exchange in a dimerized quantum magnet composed of unlike spin species.

Intrinsic nature of spontaneous magnetic fields in superconductors with time-reversal symmetry breaking (2021)
Journal Article
Huddart, B., Onuorah, I., Isah, M., Bonfa, P., Blundell, S., Clark, S., …Lancaster, T. (2021). Intrinsic nature of spontaneous magnetic fields in superconductors with time-reversal symmetry breaking. Physical Review Letters, 127(23), Article 237002. https://doi.org/10.1103/physrevlett.127.237002

We present a systematic investigation of muon-stopping states in superconductors that reportedly exhibit spontaneous magnetic fields below their transition temperatures due to time-reversal symmetry breaking. These materials include elemental rhenium... Read More about Intrinsic nature of spontaneous magnetic fields in superconductors with time-reversal symmetry breaking.

Muon Spectroscopy: an Introduction (2021)
Book
Blundell, S., De Renzi, R., Lancaster, T., & Pratt, F. (Eds.). (2021). Muon Spectroscopy: an Introduction. Oxford University Press

Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation (2021)
Journal Article
Wilson, M., Hicken, T., Gomilšek, M., Štefančič, A., Balakrishnan, G., Loudon, J., …Lancaster, T. (2021). Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation. Physical Review B, 104(13), Article 134414. https://doi.org/10.1103/physrevb.104.134414

Martin Gleghorn Repository Coordinator Durham University | University Library and Collections | Bill Bryson Library | Stockton Road | Durham | DH1 3LY T: +44 (0)191 334 1584 [I'm currently working remotely and am not contactable by phone] E: j.m.gleg... Read More about Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation.

Quantum phases and spin liquid properties of 1T-TaS2 (2021)
Journal Article
Mañas-Valero, S., Huddart, B. M., Lancaster, T., Coronado, E., & Pratt, F. L. (2021). Quantum phases and spin liquid properties of 1T-TaS2. npj Quantum Materials, 6(1), Article 69. https://doi.org/10.1038/s41535-021-00367-w

Quantum materials exhibiting magnetic frustration are connected to diverse phenomena, including high Tc superconductivity, topological order, and quantum spin liquids (QSLs). A QSL is a quantum phase (QP) related to a quantum-entangled fluid-like sta... Read More about Quantum phases and spin liquid properties of 1T-TaS2.

The Internal Field in a Ferromagnetic Crystal with Chiral Molecular Packing of Achiral Organic Radicals (2021)
Journal Article
Blundell, S. J., Lancaster, T., Baker, P. J., Pratt, F. L., Shiomi, D., Sato, K., & Takui, T. (2021). The Internal Field in a Ferromagnetic Crystal with Chiral Molecular Packing of Achiral Organic Radicals. Magnetochemistry, 7(5), https://doi.org/10.3390/magnetochemistry7050071

The achiral organic radical dinitrophenyl nitronyl nitroxide crystallizes in two enantiomorphs, both being chiral tetragonal space groups that are mirror images of each other. Muon-spin rotation experiments have been performed to study the magnetic p... Read More about The Internal Field in a Ferromagnetic Crystal with Chiral Molecular Packing of Achiral Organic Radicals.

Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)2(thiourea)2 (M=Ni,Co) (2021)
Journal Article
Curley, S., Scatena, R., Williams, R., Goddard, P., Macchi, P., Hicken, T., …Manson, J. (2021). Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)2(thiourea)2 (M=Ni,Co). Physical Review Materials, 5(3), Article 034401. https://doi.org/10.1103/physrevmaterials.5.034401

The magnetic properties of the two isostructural molecule-based magnets—Ni(NCS)2(thiourea)2, S = 1 [thiourea = SC(NH2 )2] and Co(NCS)2 (thiourea)2, S = 3/2—are characterized using several techniques in order to rationalize their relationship with str... Read More about Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)2(thiourea)2 (M=Ni,Co).

Magnetic order and ballistic spin transport in a sine-Gordon spin chain (2021)
Journal Article
Huddart, B., Gomilšek, M., Hicken, T., Pratt, F., Blundell, S., Goddard, P., …Lancaster, T. (2021). Magnetic order and ballistic spin transport in a sine-Gordon spin chain. Physical Review B, 103(6), Article L060405. https://doi.org/10.1103/physrevb.103.l060405

We report the results of muon-spin spectroscopy (μ+SR) measurements on the staggered molecular spin chain [pym-Cu(NO3 )2(H2O)2] (pym = pyrimidine), a material previously described using sine-Gordon field theory. Zero-field μ+SR reveals a long range m... Read More about Magnetic order and ballistic spin transport in a sine-Gordon spin chain.

Megahertz dynamics in skyrmion systems probed with muon-spin relaxation (2021)
Journal Article
Hicken, T., Wilson, M., Franke, K., Huddart, B., Hawkhead, Z., Gomilšek, M., …Lancaster, T. (2021). Megahertz dynamics in skyrmion systems probed with muon-spin relaxation. Physical Review B, 103(2), https://doi.org/10.1103/physrevb.103.024428

We present longitudinal-field muon-spin relaxation (LF μ SR ) measurements on two systems that stabilize a skyrmion lattice (SkL): Cu 2 OSeO 3 , and Co x Zn y Mn 20 − x − y for ( x , y ) = ( 10 , 10 ) , (8, 9), and (8, 8). We find that the SkL phase... Read More about Megahertz dynamics in skyrmion systems probed with muon-spin relaxation.

Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange (2020)
Journal Article
Xiao, F., Blackmore, W., Huddart, B., Gomilšek, M., Hicken, T., Baines, C., …Lancaster, T. (2020). Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange. Physical Review B, 102(17), Article 174429. https://doi.org/10.1103/physrevb.102.174429

We present an investigation of the effect of randomizing exchange coupling strengths in the S = 1/2 square lattice quasi-two-dimensional quantum Heisenberg antiferromagnet (QHAF) (QuinH)2Cu(ClxBr1−x )4 · 2H2O (QuinH = Quinolinium, C9H8N+), with 0 x 1... Read More about Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange.

From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets (2020)
Journal Article
Tustain, K., Ward-O’Brien, B., Bert, F., Han, T., Luetkens, H., Lancaster, T., …Clark, L. (2020). From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets. npj Quantum Materials, 5(1), Article 74. https://doi.org/10.1038/s41535-020-00276-4

We report a comprehensive muon spectroscopy study of the Zn-barlowite series of S=12 kagomé antiferromagnets, ZnxCu4−x(OH)6FBr, for x = 0.00 to 0.99(1). By combining muon spin relaxation and rotation measurements with state-of-the-art density-functio... Read More about From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets.

Extremely well isolated two-dimensional spin-1/2 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF (2020)
Journal Article
Opherden, D., Nizar, N., Richardson, K., Monroe, J., Turnbull, M., Polson, M., …Landee, C. (2020). Extremely well isolated two-dimensional spin-1/2 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF. Physical Review B, 102(6), Article 064431. https://doi.org/10.1103/physrevb.102.064431

We report on a comprehensive characterization of the newly synthesized Cu2+-based molecular magnet [Cu(pz)2 (2-HOpy)2](PF6 )2 (CuPOF), where pz = C4H4N2 and 2-HOpy = C5H4NHO. From a comparison of theoretical modeling to results of bulk magnetometry,... Read More about Extremely well isolated two-dimensional spin-1/2 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF.

Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet (2020)
Journal Article
Arh, T., Gomilšek, M., Prelovšek, P., Pregelj, M., Klanjšek, M., Ozarowski, A., …Zorko, A. (2020). Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet. Physical Review Letters, 125(2), Article 027203. https://doi.org/10.1103/physrevlett.125.027203

The ground state of the simple Heisenberg nearest-neighbor quantum kagome antiferromagnetic model is a magnetically disordered spin liquid, yet various perturbations may lead to fundamentally different states. Here we disclose the origin of magnetic... Read More about Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet.

Magnetism and Néel skyrmion dynamics in GaV4S8−ySey (2020)
Journal Article
Hicken, T., Holt, S., Franke, K., Hawkhead, Z., Štefančič, A., Wilson, M., …Lancaster, T. (2020). Magnetism and Néel skyrmion dynamics in GaV4S8−ySey. Physical Review Research, 2(3), Article 032001. https://doi.org/10.1103/physrevresearch.2.032001

We present an investigation of the influence of low levels of chemical substitution on the magnetic ground state and Néel skyrmion lattice (SkL) state in GaV4S8−ySey, where y=0,0.1,7.9, and 8. Muon-spin spectroscopy (μSR) measurements on y=0 and 0.1... Read More about Magnetism and Néel skyrmion dynamics in GaV4S8−ySey.

Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV4S8−ySey (2020)
Journal Article
Štefančič, A., Holt, S. J., Lees, M. R., Ritter, C., Gutmann, M. J., Lancaster, T., & Balakrishnan, G. (2020). Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV4S8−ySey. Scientific Reports, 10(1), Article 9813. https://doi.org/10.1038/s41598-020-65676-9

The GaV4S8−ySey (y = 0 to 8) family of materials have been synthesized in both polycrystalline and single crystal form, and their structural and magnetic properties thoroughly investigated. Each of these materials crystallizes in the Fˉ 43m space gro... Read More about Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV4S8−ySey.

Near-ideal molecule-based Haldane spin chain (2020)
Journal Article
Williams, R. C., Blackmore, W. J., Curley, S. P., Lees, M. R., Birnbaum, S. M., Singleton, J., …Goddard, P. A. (2020). Near-ideal molecule-based Haldane spin chain. Physical Review Research, 2(1), Article 013082. https://doi.org/10.1103/physrevresearch.2.013082

The molecular coordination complex NiI2 (3, 5-lut)4 [where (3,5-lut) = (3,5-lutidine) = (C7H9N)] has been synthesized and characterized by several techniques including synchrotron x-ray diffraction, electron-spin resonance, superconducting quantum in... Read More about Near-ideal molecule-based Haldane spin chain.

Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets (2020)
Journal Article
Manson, J. L., Manson, Z. E., Sargent, A., Villa, D. Y., Etten, N. L., Blackmore, W. J., …Singleton, J. (2020). Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets. Polyhedron, 180, Article 114379. https://doi.org/10.1016/j.poly.2020.114379

We examine the crystal structures and magnetic properties of several S = 1 Ni(II) coordination compounds, molecules and polymers, that include the bridging ligands HF2-, AF62- (A = Ti, Zr) and pyrazine or non-bridging ligands F-, SiF62-, glycine, H2O... Read More about Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets.

Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction (2019)
Journal Article
Franke, K., Dean, P., Hatnean, M. C., Birch, M., Khalyavin, D., Manuel, P., …Hatton, P. (2019). Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction. AIP Advances, 9(12), Article 125228. https://doi.org/10.1063/1.5129400

We present long-wavelength neutron diffraction data measured on both single crystal and polycrystalline samples of the skyrmion host material Cu2OSeO3. We observe magnetic satellites around the (01⎯⎯1) diffraction peak not accessible to other techniq... Read More about Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction.

Determining the anisotropy and exchange parameters of polycrystalline spin-1 magnets (2019)
Journal Article
Blackmore, W., Brambleby, J., Lancaster, T., Clark, S., Johnson, R., Singleton, J., …Goddard, P. (2019). Determining the anisotropy and exchange parameters of polycrystalline spin-1 magnets. New Journal of Physics, 21(9), https://doi.org/10.1088/1367-2630/ab3dba

Although low-dimensional S = 1 antiferromagnets remain of great interest, difficulty in obtaining highquality single crystals of the newest materials hinders experimental research in this area. Polycrystalline samples are more readily produced, but t... Read More about Determining the anisotropy and exchange parameters of polycrystalline spin-1 magnets.

Increased lifetime of metastable skyrmions by controlled doping (2019)
Journal Article
Birch, M., Takagi, R., Seki, S., Wilson, M., Kagawa, F., Štefančič, A., …Hatton, P. (2019). Increased lifetime of metastable skyrmions by controlled doping. Physical review B, 100(1), Article 014425. https://doi.org/10.1103/physrevb.100.014425

Previous observations of metastable magnetic skyrmions have shown that close to the equilibrium pocket the metastable state has a short lifetime, and therefore, rapid cooling is required to generate a significant skyrmion population at low temperatur... Read More about Increased lifetime of metastable skyrmions by controlled doping.

Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)] n (Ln  =  Sm, La) using implanted muons (2019)
Journal Article
Lancaster, T., Huddart, B., Williams, R., Xiao, F., Franke, K., Baker, P., …Preuss, K. (2019). Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)] n (Ln  =  Sm, La) using implanted muons. Journal of Physics: Condensed Matter, 31(39), Article 394002. https://doi.org/10.1088/1361-648x/ab2cb6

We present the results of muon-spin relaxation (SR) measurements on antiferromagnetic and ferromagnetic spin chains. In antiferromagnetic CuF2(pyz) we identify a transition to long range magnetic order taking place at K, allowing us to estimate a rat... Read More about Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)] n (Ln  =  Sm, La) using implanted muons.

Local magnetism, magnetic order and spin freezing in the "nonmetallic metal" FeCrAs (2019)
Journal Article
Huddart, B., Birch, M. T., Pratt, F., Blundell, S., Porter, D. G., Clark, S. J., …Lancaster, T. (2019). Local magnetism, magnetic order and spin freezing in the "nonmetallic metal" FeCrAs. Journal of Physics: Condensed Matter, 31(28), Article 285803. https://doi.org/10.1088/1361-648x/ab151f

We present the results of x-ray scattering and muon-spin relaxation (SR) measurements on the iron-pnictide compound FeCrAs. Polarized non-resonant magnetic x-ray scattering results reveal the 120° periodicity expected from the suggested three-fold sy... Read More about Local magnetism, magnetic order and spin freezing in the "nonmetallic metal" FeCrAs.

Emergence and topological order in classical and quantum systems (2019)
Journal Article
McLeish, T., Pexton, M., & Lancaster, T. (2019). Emergence and topological order in classical and quantum systems. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, 66, 155-169. https://doi.org/10.1016/j.shpsb.2019.02.006

There has been growing interest in systems in condensed matter physics as a potential source of examples of both epistemic and ontological emergence. One of these case studies is the fractional quantum Hall state (FQHS). In the FQHS a system of elect... Read More about Emergence and topological order in classical and quantum systems.

Unconventional Field-Induced Spin Gap in an S=1/2 Chiral Staggered Chain (2019)
Journal Article
Liu, J., Kittaka, S., Johnson, R., Lancaster, T., Singleton, J., Sakakibara, T., …Goddard, P. (2019). Unconventional Field-Induced Spin Gap in an S=1/2 Chiral Staggered Chain. Physical Review Letters, 122(5), Article 057207. https://doi.org/10.1103/physrevlett.122.057207

We investigate the low-temperature magnetic properties of the molecule-based chiral spin chain ½CuðpymÞðH2OÞ4SiF6 · H2O (pym ¼ pyrimidine). Electron-spin resonance, magnetometry and heat capacity measurements reveal the presence of staggered g tensor... Read More about Unconventional Field-Induced Spin Gap in an S=1/2 Chiral Staggered Chain.

Spin Jahn-Teller antiferromagnetism in CoTi2O5 (2019)
Journal Article
Kirschner, F. K., Johnson, R. D., Lang, F., Khalyavin, D. D., Manuel, P., Lancaster, T., …Blundell, S. J. (2019). Spin Jahn-Teller antiferromagnetism in CoTi2O5. Physical Review B, 99(6), Article 064403. https://doi.org/10.1103/physrevb.99.064403

We have used neutron powder diffraction to solve the magnetic structure of orthorhombic CoTi2O5, showing that the long-range ordered state below 26 K identified in our muon-spin rotation experiments is antiferromagnetic with propagation vector k = (±... Read More about Spin Jahn-Teller antiferromagnetism in CoTi2O5.

Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet α−Li2IrO3 (2019)
Journal Article
Choi, S., Manni, S., Singleton, J., Topping, C., Lancaster, T., Blundell, S., …Coldea, R. (2019). Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet α−Li2IrO3. Physical Review B, 99(5), Article 054426. https://doi.org/10.1103/physrevb.99.054426

The layered honeycomb iridate α-Li2IrO3 displays an incommensurate magnetic structure with counterrotating moments on nearest-neighbor sites, proposed to be stabilized by strongly frustrated anisotropic Kitaev interactions between spin-orbit entangle... Read More about Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet α−Li2IrO3.

Magnetic order and enhanced exchange in the quasi-one-dimensional molecule-based antiferromagnet Cu(NO3)2(pyz)3 (2018)
Journal Article
Huddart, B., Brambleby, J., Lancaster, T., Goddard, P., Xiao, F., Blundell, S. J., …Manson, J. L. (2019). Magnetic order and enhanced exchange in the quasi-one-dimensional molecule-based antiferromagnet Cu(NO3)2(pyz)3. Physical Chemistry Chemical Physics, 21(3), 1014-1018. https://doi.org/10.1039/c8cp07160h

The quasi-one-dimensional molecule-based Heisenberg antiferromagnet Cu(NO3)2(pyz)3 has an intrachain coupling J = 13.7(1) K (Image ID:c8cp07160h-t1.gif) and exhibits a state of long-range magnetic order below TN = 0.105(1) K. The ratio of interchain... Read More about Magnetic order and enhanced exchange in the quasi-one-dimensional molecule-based antiferromagnet Cu(NO3)2(pyz)3.

Proposal for a micromagnetic standard problem for materials with Dzyaloshinskii–Moriya interaction (2018)
Journal Article
Cortés-Ortuño, D., Beg, M., Nehruji, V., Breth, L., Pepper, R., Kluyver, T., …Fangohr, H. (2018). Proposal for a micromagnetic standard problem for materials with Dzyaloshinskii–Moriya interaction. New Journal of Physics, 20(11), Article 113015. https://doi.org/10.1088/1367-2630/aaea1c

Understanding the role of the Dzyaloshinskii–Moriya interaction (DMI) for the formation of helimagnetic order, as well as the emergence of skyrmions in magnetic systems that lack inversion symmetry, has found increasing interest due to the significan... Read More about Proposal for a micromagnetic standard problem for materials with Dzyaloshinskii–Moriya interaction.

Origin of skyrmion lattice phase splitting in Zn-substituted Cu2OSeO3 (2018)
Journal Article
Štefančič, A., Moody, S., Hicken, T., Birch, M., Balakrishnan, G., Barnett, S., …Lancaster, T. (2018). Origin of skyrmion lattice phase splitting in Zn-substituted Cu2OSeO3. Physical Review Materials, 2(11), Article 111402(R). https://doi.org/10.1103/physrevmaterials.2.111402

We present an investigation into the structural and magnetic properties of Zn-substituted Cu2OSeO3, a system in which the skyrmion lattice (SkL) phase in the magnetic field–temperature phase diagram was previously seen to split as a function of incre... Read More about Origin of skyrmion lattice phase splitting in Zn-substituted Cu2OSeO3.

Quantum magnetism in molecular spin ladders probed with muon-spin spectroscopy (2018)
Journal Article
Lancaster, T., Xiao, F., Huddart, B., Williams, R., Pratt, F., Blundell, S., …Krämer, K. (2018). Quantum magnetism in molecular spin ladders probed with muon-spin spectroscopy. New Journal of Physics, 20(10), Article 103002. https://doi.org/10.1088/1367-2630/aae21a

We present the results of muon-spin spectroscopy (μ +SR) measurements on the molecular spin ladder system (Hpip)2CuBr4(1−x)Cl4x , [Hpip = (C5H12N)]. Using transverse field μ +SR we are able to identify characteristic behaviour in each of the regions... Read More about Quantum magnetism in molecular spin ladders probed with muon-spin spectroscopy.

Magnetic phases of skyrmion-hosting GaV4S8−ySey (y = 0, 2, 4, 8) probed with muon spectroscopy (2018)
Journal Article
Franke, K. J., Huddart, B. M., Hicken, T. J., Xiao, F., Blundell, S. J., Pratt, F. L., …Lancaster, T. (2018). Magnetic phases of skyrmion-hosting GaV4S8−ySey (y = 0, 2, 4, 8) probed with muon spectroscopy. Physical Review B, 98(5), Article 054428. https://doi.org/10.1103/physrevb.98.054428

We present the results of a muon-spin spectroscopy investigation of GaV4S8−ySey with y = 0, 2, 4, and 8. Zero-field measurements suggest that GaV4Se8 and GaV4S8 have distinct magnetic ground states, with the latter material showing an anomalous tempe... Read More about Magnetic phases of skyrmion-hosting GaV4S8−ySey (y = 0, 2, 4, 8) probed with muon spectroscopy.

Microscopic effects of Dy doping in the topological insulator Bi2Te3 (2018)
Journal Article
Duffy, L., Steinke, N., Krieger, J., Figueroa, A., Kummer, K., Lancaster, T., …Hesjedal, T. (2018). Microscopic effects of Dy doping in the topological insulator Bi2Te3. Physical Review B, 97(17), Article 174427. https://doi.org/10.1103/physrevb.97.174427

Magnetic doping with transition metal ions is the most widely used approach to break time-reversal symmetry in a topological insulator (TI)—a prerequisite for unlocking the TI’s exotic potential. Recently, we reported the doping of Bi2Te3 thin films... Read More about Microscopic effects of Dy doping in the topological insulator Bi2Te3.

Implications of bond disorder in a S=1 kagome lattice (2018)
Journal Article
Manson, J. L., Brambleby, J., Goddard, P. A., Spurgeon, P. M., Villa, J. A., Liu, J., …Noll, B. (2018). Implications of bond disorder in a S=1 kagome lattice. Scientific Reports, 8(1), Article 4745. https://doi.org/10.1038/s41598-018-23054-6

Strong hydrogen bonds such as F···H···F offer new strategies to fabricate molecular architectures exhibiting novel structures and properties. Along these lines and, to potentially realize hydrogen-bond mediated superexchange interactions in a frustra... Read More about Implications of bond disorder in a S=1 kagome lattice.

Quantum mechanical tunneling in the automerization of cyclobutadiene (2018)
Journal Article
Schoonmaker, R., Lancaster, T., & Clark, S. (2018). Quantum mechanical tunneling in the automerization of cyclobutadiene. The Journal of Chemical Physics, 148(10), Article 104109. https://doi.org/10.1063/1.5019254

Cyclobutadiene has a four-membered carbon ring with two double bonds, but this highly strained molecular configuration is almost square and, via a coordinated motion, the nuclei quantum mechanically tunnels through the high-energy square state to a c... Read More about Quantum mechanical tunneling in the automerization of cyclobutadiene.

Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO3 (2018)
Conference Proceeding
Kirschner, F. K., Lang, F., Pratt, F. L., Lancaster, T., Shi, Y., Guo, Y., …Blundell, S. J. (2018). Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO3. In Proceedings of the 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2017). https://doi.org/10.7566/jpscp.21.011013

LiOsO3 is the first example of a new class of material called a ferroelectric metal. We performed zero-field and longitudinal-field μSR, along with a combination of electronic structure and dipole field calculations, to determine the magneticground s... Read More about Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO3.

Strong Coupling of Microwave Photons to Antiferromagnetic Fluctuations in an Organic Magnet (2017)
Journal Article
Mergenthaler, M., Liu, J., Le Roy, J. J., Ares, N., Thompson, A. L., Bogani, L., …Laird, E. A. (2017). Strong Coupling of Microwave Photons to Antiferromagnetic Fluctuations in an Organic Magnet. Physical Review Letters, 119(14), Article 147701. https://doi.org/10.1103/physrevlett.119.147701

Coupling between a crystal of di(phenyl)-(2,4,6-trinitrophenyl)iminoazanium radicals and a superconducting microwave resonator is investigated in a circuit quantum electrodynamics (circuit QED) architecture. The crystal exhibits paramagnetic behavior... Read More about Strong Coupling of Microwave Photons to Antiferromagnetic Fluctuations in an Organic Magnet.

Local magnetism and spin dynamics of the frustrated honeycomb rhodate Li2RhO3 (2017)
Journal Article
Khuntia, P., Manni, S., Foronda, F., Lancaster, T., Blundell, S., Gegenwart, P., & Baenitz, M. (2017). Local magnetism and spin dynamics of the frustrated honeycomb rhodate Li2RhO3. Physical Review B, 96(9), Article 094432. https://doi.org/10.1103/physrevb.96.094432

We reportmagnetization, heat capacity, 7Li nuclear magnetic resonance (NMR), and muon-spin rotation (μSR) measurements on the honeycomb 4d5 spin liquid candidate Li2RhO3. The magnetization in small magnetic fields provides evidence of the partial spi... Read More about Local magnetism and spin dynamics of the frustrated honeycomb rhodate Li2RhO3.

Exchange constants in molecule-based magnets derived from density functional methods (2017)
Journal Article
Thomas, I., Clark, S., & Lancaster, T. (2017). Exchange constants in molecule-based magnets derived from density functional methods. Physical Review B, 96(9), Article 094403. https://doi.org/10.1103/physrevb.96.094403

Cu(pyz)(NO3)2 is a quasi-one-dimensional molecular antiferromagnet that exhibits three-dimensional long-range magnetic order below T N = 110 mK due to the presence of weak interchain exchange couplings. Here, we compare calculations of the three larg... Read More about Exchange constants in molecule-based magnets derived from density functional methods.

Crystal structure and magnetic modulation in β−Ce2O2FeSe2 (2017)
Journal Article
Wang, C., Ainsworth, C., Champion, S., Stewart, G., Worsdale, M., Lancaster, T., …Evans, J. S. (2017). Crystal structure and magnetic modulation in β−Ce2O2FeSe2. Physical Review Materials, 1(3), Article 034403. https://doi.org/10.1103/physrevmaterials.1.034403

We report a combination of X-ray and neutron diffraction studies, Mossbauer spectroscopy and muon spin relaxation (muSR) measurements to probe the structure and magnetic properties of the semiconducting beta-Ce2O2FeSe2 oxychalcogenide. We report a ne... Read More about Crystal structure and magnetic modulation in β−Ce2O2FeSe2.

Quantum Griffiths phase inside the ferromagnetic phase of Ni1-xVx (2017)
Journal Article
Wang, R., Gebretsadik, A., Ubaid-Kassis, S., Schroeder, A., Vojta, T., Baker, P. J., …Page, K. (2017). Quantum Griffiths phase inside the ferromagnetic phase of Ni1-xVx. Physical Review Letters, 118(26), Article 267202. https://doi.org/10.1103/physrevlett.118.267202

We study by means of bulk and local probes the d-metal alloy Ni1-xVx close to the quantum critical concentration, x_c \approx 11.6\%, where the ferromagnetic transition temperature vanishes. The magnetization-field curve in the ferromagnetic phase ta... Read More about Quantum Griffiths phase inside the ferromagnetic phase of Ni1-xVx.

Room-temperature helimagnetism in FeGe thin films (2017)
Journal Article
Zhang, S., Stasinopoulos, I., Lancaster, T., Xiao, F., Bauer, A., Rucker, F., …Hesjedal, T. (2017). Room-temperature helimagnetism in FeGe thin films. Scientific Reports, 7(1), Article 123. https://doi.org/10.1038/s41598-017-00201-z

Chiral magnets are promising materials for the realisation of high-density and low-power spintronic memory devices. For these future applications, a key requirement is the synthesis of appropriate materials in the form of thin films ordering well abo... Read More about Room-temperature helimagnetism in FeGe thin films.

The Use of Downward Causation in Condensed Matter Physics (2017)
Book Chapter
Clark, S., & Lancaster, T. (2017). The Use of Downward Causation in Condensed Matter Physics. In M. P. Paoletti, & F. Orilia (Eds.), Philosophical and scientific perspectives on downward causation (131-145). Routledge

Elucidation of the helical spin structure of FeAs (2017)
Journal Article
Frawley, T., Schoonmaker, R., Lee, S., Du, C., Steadman, P., Strempfer, J., …Hatton, P. (2017). Elucidation of the helical spin structure of FeAs. Physical Review B, 95(6), Article 064424. https://doi.org/10.1103/physrevb.95.064424

We present the results of resonant x-ray scattering measurements and electronic structure calculations on the monoarsenide FeAs. We elucidate details of the magnetic structure, showing the ratio of ellipticity of the spin helix is larger than previou... Read More about Elucidation of the helical spin structure of FeAs.

Adiabatic physics of an exchange-coupled spin-dimer system: Magnetocaloric effect, zero-point fluctuations, and possible two-dimensional universal behavior (2017)
Journal Article
Brambleby, J., Goddard, P., Singleton, J., Jaime, M., Lancaster, T., Huang, L., …Manson, J. (2017). Adiabatic physics of an exchange-coupled spin-dimer system: Magnetocaloric effect, zero-point fluctuations, and possible two-dimensional universal behavior. Physical Review B, 95(2), Article 024404. https://doi.org/10.1103/physrevb.95.024404

We present the magnetic and thermal properties of the bosonic-superfluid phase in a spin-dimer network using both quasistatic and rapidly changing pulsed magnetic fields. The entropy derived from a heat-capacity study reveals that the pulsed-field me... Read More about Adiabatic physics of an exchange-coupled spin-dimer system: Magnetocaloric effect, zero-point fluctuations, and possible two-dimensional universal behavior.

Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation (2017)
Journal Article
Möller, J., Lancaster, T., Blundell, S., Pratt, F., Baker, P., Xiao, F., …Landee, C. (2017). Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation. Physical Review B, 95(2), Article 020402(R). https://doi.org/10.1103/physrevb.95.020402

We demonstrate that quantum-critical spin dynamics can be probed in high magnetic fields using muon-spin relaxation (μ+SR). Our model system is the strong-leg spin ladder bis(2,3-dimethylpyridinium) tetrabromocuprate (DIMPY). In the gapless Tomonaga-... Read More about Quantum-critical spin dynamics in a Tomonaga-Luttinger liquid studied with muon-spin relaxation.

Effect of disorder on a pressure-induced z = 1 magnetic quantum phase transition (2016)
Journal Article
Mannig, A., Möller, J., Thede, M., Hüvonen, D., Lancaster, T., Xiao, F., …Zheludev, A. (2016). Effect of disorder on a pressure-induced z = 1 magnetic quantum phase transition. Physical Review B, 94(14), Article 144418. https://doi.org/10.1103/physrevb.94.144418

Pressure-induced ordering close to a z=1 quantum-critical point is studied in the presence of bond disorder in the quantum spin system (C4H12N2)Cu2(Cl1−xBrx)6 (PHCX) by means of muon-spin rotation and relaxation. As for the pure system (C4H12N2)Cu2Cl... Read More about Effect of disorder on a pressure-induced z = 1 magnetic quantum phase transition.

Bimetallic MOFs (H3O)x[Cu(MF6)(pyrazine)2]·(4 − x)H2O (M = V4+, x = 0; M = Ga3+, x = 1): co-existence of ordered and disordered quantum spins in the V4+ system (2016)
Journal Article
Manson, J. L., Schlueter, J. A., Garrett, K. E., Goddard, P. A., Lancaster, T., Möller, J. S., …Baines, C. (2016). Bimetallic MOFs (H3O)x[Cu(MF6)(pyrazine)2]·(4 − x)H2O (M = V4+, x = 0; M = Ga3+, x = 1): co-existence of ordered and disordered quantum spins in the V4+ system. Chemical Communications, 52(85), 12653-12656. https://doi.org/10.1039/c6cc05873f

The title compounds are bimetallic MOFs containing [Cu(pyz)2]2+ square lattices linked by MF6n− octahedra. In each, only the Cu2+ spins exhibit long-range magnetic order below 3.5 K (M = V4+) and 2.6 K (M = Ga3+). The V4+ spins remain disordered down... Read More about Bimetallic MOFs (H3O)x[Cu(MF6)(pyrazine)2]·(4 − x)H2O (M = V4+, x = 0; M = Ga3+, x = 1): co-existence of ordered and disordered quantum spins in the V4+ system.

La2SrCr2O7: Controlling the Tilting Distortions of n=2 Ruddlesden-Popper Phases through A-Site Cation Order (2016)
Journal Article
Zhang, R., Abbett, B., Read, G., Lang, F., Lancaster, T., Tran, T., …Hayward, M. (2016). La2SrCr2O7: Controlling the Tilting Distortions of n=2 Ruddlesden-Popper Phases through A-Site Cation Order. Inorganic Chemistry, 55(17), 8951-8960. https://doi.org/10.1021/acs.inorgchem.6b01445

The n = 2 Ruddlesden−Popper phase La2SrCr2O7 adopts a highly unusual structural configuration in which the cooperative rotations of the CrO6 octahedra are out of phase in all three Cartesian directions (ΦΦΦz/ΦΦΦz; a−a−c−/a−a−c−). First-principles DFT... Read More about La2SrCr2O7: Controlling the Tilting Distortions of n=2 Ruddlesden-Popper Phases through A-Site Cation Order.

Nanoscale depth-resolved polymer dynamics probed by the implantation of low energy muons (2016)
Journal Article
Pratt, F. L., Lancaster, T., Baker, P. J., Blundell, S. J., Prokscha, T., Morenzoni, E., …Assender, H. E. (2016). Nanoscale depth-resolved polymer dynamics probed by the implantation of low energy muons. Polymer, 105, 516-525. https://doi.org/10.1016/j.polymer.2016.07.078

The low energy muon (LEM) technique has been used to probe local changes in the dynamical spectrum of thin film polymer samples taking place as a function of the temperature and the implantation depth below the free surface. The studies have been mad... Read More about Nanoscale depth-resolved polymer dynamics probed by the implantation of low energy muons.

Magnetization dynamics and frustration in the multiferroic double perovskite Lu2MnCoO6 (2016)
Journal Article
Zapf, V., Ueland, B., Laver, M., Lonsky, M., Pohlit, M., Muller, J., …Senarıs-Rodrıguez, M. (2016). Magnetization dynamics and frustration in the multiferroic double perovskite Lu2MnCoO6. Physical Review B, 93(13), Article 134431. https://doi.org/10.1103/physrevb.93.134431

We investigate the magnetic ordering and the magnetization dynamics (from kHz to THz time scales) of the double perovskite Lu2MnCoO6 using elastic neutron diffraction, muon spin relaxation, and micro-Hall magnetization measurements. This compound is... Read More about Magnetization dynamics and frustration in the multiferroic double perovskite Lu2MnCoO6.

Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi (2016)
Journal Article
Lancaster, T., Xiao, F., Salman, Z., Thomas, I., Blundell, S., Pratt, F., …Hesjedal, T. (2016). Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi. Physical Review B, 93(14), Article 140412(R). https://doi.org/10.1103/physrevb.93.140412

We present the results of transverse-field muon-spin rotation measurements on an epitaxially grown 40-nm-thick film of MnSi on Si(111) in the region of the field-temperature phase diagram where a skyrmion phase has been observed in the bulk. We ident... Read More about Transverse field muon-spin rotation measurement of the topological anomaly in a thin film of MnSi.

Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation (2016)
Journal Article
Williams, R., Xiao, F., Lancaster, T., De Renzi, R., Allodi, G., Bordignon, S., …Prabhakaran, D. (2016). Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation. Physical Review B, 93(14), Article 140406(R). https://doi.org/10.1103/physrevb.93.140406

We report the results of a muon-spin relaxation (μSR) investigation of La2−xSrxCoO4, an antiferromagnetic insulating series which has been shown to support charge ordered and magnetic stripe phases and an hourglass magnetic excitation spectrum. We pr... Read More about Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation.

La2SrCr2O7F2: A Ruddlesden–Popper Oxyfluoride Containing Octahedrally Coordinated Cr4+ Centers (2016)
Journal Article
Zhang, R., Read, G., Lang, F., Lancaster, T., Blundell, S., & Hayward, M. (2016). La2SrCr2O7F2: A Ruddlesden–Popper Oxyfluoride Containing Octahedrally Coordinated Cr4+ Centers. Inorganic Chemistry, 55(6), 3169-3174. https://doi.org/10.1021/acs.inorgchem.6b00114

The low-temperature fluorination of the n = 2 Ruddlesden–Popper phase La2SrCr2O7 yields La2SrCr2O7F2 via a topochemical fluorine insertion reaction. The structure-conserving nature of the fluorination reaction means that the chromium centers of the i... Read More about La2SrCr2O7F2: A Ruddlesden–Popper Oxyfluoride Containing Octahedrally Coordinated Cr4+ Centers.

Antiferromagnetism in a Family of S = 1 Square Lattice Coordination Polymers NiX2(pyz)2 (X = Cl, Br, I, NCS; pyz = Pyrazine) (2016)
Journal Article
Liu, J., Goddard, P., Singleton, J., Brambleby, J., Foronda, F., Moeller, J., …Manson, J. (2016). Antiferromagnetism in a Family of S = 1 Square Lattice Coordination Polymers NiX2(pyz)2 (X = Cl, Br, I, NCS; pyz = Pyrazine). Inorganic Chemistry, 55(7), 3515-3529. https://doi.org/10.1021/acs.inorgchem.5b02991

NiX2(pyz)2 have been synthesized and characterized using several magnetic probes. Except for X = Cl, long-range AFM order was found below TN = 1.9 (X = Br and NCS) and 2.5 K (X = I). In addition, Jpyz ∼ 1 K regardless of X, and D = 8 K for NiCl2(pyz)... Read More about Antiferromagnetism in a Family of S = 1 Square Lattice Coordination Polymers NiX2(pyz)2 (X = Cl, Br, I, NCS; pyz = Pyrazine).

Control of the third dimension in copper-based square-lattice antiferromagnets (2016)
Journal Article
Goddard, P., Singleton, J., Franke, I., Möller, J., Lancaster, T., Steele, A., …Manson, J. (2016). Control of the third dimension in copper-based square-lattice antiferromagnets. Physical review B, 93(9), Article 094430. https://doi.org/10.1103/physrevb.93.094430

Using a mixed-ligand synthetic scheme, we create a family of quasi-two-dimensional antiferromagnets, namely, [Cu(HF2)(pyz)2]ClO4 [pyz = pyrazine], [CuL2(pyz)2](ClO4)2 [L = pyO = pyridine-N-oxide and 4-phpy-O = 4-phenylpyridine-N-oxide. These material... Read More about Control of the third dimension in copper-based square-lattice antiferromagnets.

Experimental and Theoretical Electron Density Analysis of Copper Pyrazine Nitrate Quasi-Low-Dimensional Quantum Magnets (2016)
Journal Article
Dos Santos, L., Lanza, A., Barton, A., Brambleby, J., Goddard, P., Xiao, F., …Macchi, P. (2016). Experimental and Theoretical Electron Density Analysis of Copper Pyrazine Nitrate Quasi-Low-Dimensional Quantum Magnets. Journal of the American Chemical Society, 138(7), 2280-2291. https://doi.org/10.1021/jacs.5b12817

The accurate electron density distribution and magnetic properties of two metal-organic polymeric magnets, the quasi-one-dimensional (1D) Cu(pyz)(NO3)2 and the quasi-two-dimensional (2D) [Cu(pyz)2(NO3)]NO3·H2O, have been investigated by high-resoluti... Read More about Experimental and Theoretical Electron Density Analysis of Copper Pyrazine Nitrate Quasi-Low-Dimensional Quantum Magnets.

Muon-spin relaxation study of the double perovskite insulators Sr2 BOsO6 (B  =  Fe, Y, ln) (2016)
Journal Article
Williams, R., Xiao, F., Thomas, I., Clark, S., Lancaster, T., Cornish, G., …Jansen, M. (2016). Muon-spin relaxation study of the double perovskite insulators Sr2 BOsO6 (B  =  Fe, Y, ln). Journal of Physics: Condensed Matter, 28(7), Article 076001. https://doi.org/10.1088/0953-8984/28/7/076001

We present the results of zero-field muon-spin relaxation measurements made on the double perovskite insulators Sr2BOsO6 (B = Fe, Y, In). Spontaneous muon-spin precession indicative of quasistatic long range magnetic ordering is observed in Sr2FeOsO6... Read More about Muon-spin relaxation study of the double perovskite insulators Sr2 BOsO6 (B  =  Fe, Y, ln).

Studies of a Large Odd-Numbered Odd-Electron Metal Ring: Inelastic Neutron Scattering and Muon Spin Relaxation Spectroscopy of Cr8Mn (2016)
Journal Article
Baker, M. L., Lancaster, T., Chiesa, A., Amoretti, G., Baker, P. J., Barker, C., …Winpenny, R. E. (2016). Studies of a Large Odd-Numbered Odd-Electron Metal Ring: Inelastic Neutron Scattering and Muon Spin Relaxation Spectroscopy of Cr8Mn. Chemistry - A European Journal, 22(5), 1779-1788. https://doi.org/10.1002/chem.201503431

The spin dynamics of Cr8Mn, a nine-membered antiferromagnetic (AF) molecular nanomagnet, are investigated. Cr8Mn is a rare example of a large odd-membered AF ring, and has an odd-number of 3d-electrons present. Odd-membered AF rings are unusual and o... Read More about Studies of a Large Odd-Numbered Odd-Electron Metal Ring: Inelastic Neutron Scattering and Muon Spin Relaxation Spectroscopy of Cr8Mn.

Reduction and emergence in the fractional quantum Hall state (2015)
Journal Article
Lancaster, T., & Pexton, M. (2015). Reduction and emergence in the fractional quantum Hall state. Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, 52(Part B), 343-357. https://doi.org/10.1016/j.shpsb.2015.10.004

We present the fractional quantum Hall (FQH) effect as a candidate emergent phenomenon. Unlike some other putative cases of condensed matter emergence (such as thermal phase transitions), the FQH effect is not based on symmetry breaking. Instead FQH... Read More about Reduction and emergence in the fractional quantum Hall state.

Robustness of superconductivity to structural disorder in Sr0.3(NH2)y(NH3)1−yFe2Se2 (2015)
Journal Article
Foronda, F., Ghannadzadeh, S., Sedlmaier, S., Wright, J., Burns, K., Cassidy, S., …Blundell, S. (2015). Robustness of superconductivity to structural disorder in Sr0.3(NH2)y(NH3)1−yFe2Se2. Physical review B, 92(13), Article 134517. https://doi.org/10.1103/physrevb.92.134517

The superconducting properties of a recently discovered high-Tc superconductor, Sr/ammonia-intercalated FeSe, have been measured using pulsed magnetic fields down to 4.2 K and muon spin spectroscopy down to 1.5 K. This compound exhibits intrinsic dis... Read More about Robustness of superconductivity to structural disorder in Sr0.3(NH2)y(NH3)1−yFe2Se2.

Magnetic ground state of the two isostructual polymeric quantum magnets [Cu(HF2)(pyrazine)2]SbF6 and [Co(HF2)(pyrazine)2]SbF6 investigated with neutron powder diffraction (2015)
Journal Article
Brambleby, J., Goddard, P., Johnson, R., Liu, J., Lancaster, T., Manuel, P., …Manson, J. (2015). Magnetic ground state of the two isostructual polymeric quantum magnets [Cu(HF2)(pyrazine)2]SbF6 and [Co(HF2)(pyrazine)2]SbF6 investigated with neutron powder diffraction. Physical review B, 92(13), Article 134406. https://doi.org/10.1103/physrevb.92.134406

The magnetic ground state of two isostructural coordination polymers, (i) the quasi-two-dimensional S=1/2 square-lattice antiferromagnet [Cu(HF2)(pyrazine)2]SbF6 and (ii) a related compound [Co(HF2)(pyrazine)2]SbF6, was examined with neutron powder d... Read More about Magnetic ground state of the two isostructual polymeric quantum magnets [Cu(HF2)(pyrazine)2]SbF6 and [Co(HF2)(pyrazine)2]SbF6 investigated with neutron powder diffraction.

Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3 (2015)
Journal Article
Lancaster, T., Williams, R., Thomas, I., Xiao, F., Pratt, F., Blundell, S., …Balakrishnan, G. (2015). Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3. Physical review B, 91(22), Article 224408. https://doi.org/10.1103/physrevb.91.224408

We present the results of transverse field (TF) muon-spin rotation (μ+SR) measurements on Cu2OSeO3, which has a skyrmion-lattice (SL) phase. We measure the response of the TF μ+SR signal in that phase along with the surrounding ones, and suggest how... Read More about Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3.

Spin diffusion in the low-dimensional molecular quantum Heisenberg antiferromagnet Cu(pyz)(NO3)2 detected with implanted muons (2015)
Journal Article
Xiao, F., Möller, J., Lancaster, T., Williams, R., Pratt, F., Blundell, S., …Manson, J. (2015). Spin diffusion in the low-dimensional molecular quantum Heisenberg antiferromagnet Cu(pyz)(NO3)2 detected with implanted muons. Physical review B, 91(14), Article 144417. https://doi.org/10.1103/physrevb.91.144417

We present the results of muon-spin relaxation measurements of spin excitations in the one-dimensional quantum Heisenberg antiferromagnet Cu(pyz)(NO3)2. Using density-functional theory we propose muon sites and assess the degree of perturbation the m... Read More about Spin diffusion in the low-dimensional molecular quantum Heisenberg antiferromagnet Cu(pyz)(NO3)2 detected with implanted muons.

Magnetostructural relationship in the tetrahedral spin-chain oxide CsCoO2 (2015)
Journal Article
Ali, N., Williams, R., Xiao, F., Clark, S., Lancaster, T., Blundell, S., …Jansen, M. (2015). Magnetostructural relationship in the tetrahedral spin-chain oxide CsCoO2. Physical review B, 91(2), Article 024419. https://doi.org/10.1103/physrevb.91.024419

We have investigated the structural and magnetic transitions in CsCoO2 using calorimetric measurements, neutron powder diffraction, density functional theory calculations, and muon-spin relaxation measurements. CsCoO2 exhibits three-dimensional long-... Read More about Magnetostructural relationship in the tetrahedral spin-chain oxide CsCoO2.

Anisotropic local modification of crystal field levels in Pr-based pyrochlores : a muon-induced effect modeled using density functional theory (2015)
Journal Article
Foronda, F., Lang, F., Möller, J., Lancaster, T., Boothroyd, A., Pratt, F., …Blundell, S. (2015). Anisotropic local modification of crystal field levels in Pr-based pyrochlores : a muon-induced effect modeled using density functional theory. Physical Review Letters, 114(1), Article 017602. https://doi.org/10.1103/physrevlett.114.017602

Although muon spin relaxation is commonly used to probe local magnetic order, spin freezing, and spin dynamics, we identify an experimental situation in which the measured response is dominated by an effect resulting from the muon-induced local disto... Read More about Anisotropic local modification of crystal field levels in Pr-based pyrochlores : a muon-induced effect modeled using density functional theory.

Probing the magnetic phases in the Ni-V alloy close to the disordered ferromagnetic quantum critical point with μSR (2014)
Journal Article
Schroeder, A., Wang, R., Baker, P., Pratt, F., Blundell, S., Lancaster, T., …Möller, J. (2014). Probing the magnetic phases in the Ni-V alloy close to the disordered ferromagnetic quantum critical point with μSR. Journal of Physics: Conference Series, 551(1), https://doi.org/10.1088/1742-6596/551/1/012003

Zero (ZF) and longitudinal field (LF) muon spin relaxation data of the d-metal alloy Ni1-xVx are presented at several vanadium concentrations x below and above the critical xc ≈ 11 % where long-range ferromagnetic (FM) order is suppressed. The clear... Read More about Probing the magnetic phases in the Ni-V alloy close to the disordered ferromagnetic quantum critical point with μSR.

Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets (2014)
Journal Article
Lancaster, T., Goddard, P., Blundell, S., Foronda, F., Ghannadzadeh, S., Möller, J., …Manson, J. (2014). Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets. Physical Review Letters, 112(20), Article 207201. https://doi.org/10.1103/physrevlett.112.207201

We investigate the structural and magnetic properties of two molecule-based magnets synthesized from the same starting components. Their different structural motifs promote contrasting exchange pathways and consequently lead to markedly different mag... Read More about Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets.

Dipolar ordering in a molecular nanomagnet detected using muon spin relaxation (2014)
Journal Article
Pratt, F., Micotti, E., Carretta, P., Lascialfari, A., Arosio, P., Lancaster, T., …Powell, A. (2014). Dipolar ordering in a molecular nanomagnet detected using muon spin relaxation. Physical review B, 89(14), Article 144420. https://doi.org/10.1103/physrevb.89.144420

Implanted muons have been used as a local probe to detect the magnetic ordering in the molecular magnetic nanodisk system Fe 19 . Two distinct groups of muon sites are identified from the relaxation data, reflecting sites near the magnetic core and s... Read More about Dipolar ordering in a molecular nanomagnet detected using muon spin relaxation.

Lattice-Site-Specific Spin Dynamics in Double Perovskite Sr2CoOsO6 (2014)
Journal Article
Binghai, Y., Paul, A. K., Kanungo, S., Reehuis, M., Hoser, A., Többens, D. M., …Jansen, M. (2014). Lattice-Site-Specific Spin Dynamics in Double Perovskite Sr2CoOsO6. Physical Review Letters, 112(14), Article 147202. https://doi.org/10.1103/physrevlett.112.147202

Magnetic properties and spin dynamics have been studied for the structurally ordered double perovskite Sr2CoOsO6. Neutron diffraction, muon-spin relaxation, and ac-susceptibility measurements reveal two antiferromagnetic (AFM) phases on cooling from... Read More about Lattice-Site-Specific Spin Dynamics in Double Perovskite Sr2CoOsO6.

Local magnetism and spin correlations in the geometrically frustrated cluster magnet LiZn2Mo3O8 (2014)
Journal Article
Sheckelton, J., Foronda, F., Pan, L., Moir, C., McDonald, R., Lancaster, T., …McQueen, T. (2014). Local magnetism and spin correlations in the geometrically frustrated cluster magnet LiZn2Mo3O8. Physical review B, 89(6), Article 064407. https://doi.org/10.1103/physrevb.89.064407

LiZn2Mo3O8 has been proposed to contain S=½Mo3O13 magnetic clusters arranged on a triangular lattice with antiferromagnetic nearest-neighbor interactions. Here, microwave and terahertz electron spin resonance, Li7 nuclear magnetic resonance, and muon... Read More about Local magnetism and spin correlations in the geometrically frustrated cluster magnet LiZn2Mo3O8.

Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4 (2014)
Journal Article
Lancaster, T., Giblin, S., Allodi, G., Bordignon, S., Mazzani, M., De Renzi, R., …Prabhakaran, D. (2014). Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4. Physical review B, 89(2), Article 020405(R). https://doi.org/10.1103/physrevb.89.020405

We investigate the magnetic ordering and dynamics of the stripe phase of La 5/3 Sr 1/3 CoO 4 , a material shown to have an hourglass magnetic excitation spectrum. A combination of muon-spin relaxation, nuclear magnetic resonance, and magnetic suscept... Read More about Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La5/3Sr1/3CoO4.

Another Dimension: investigations of molecular magnetism using muon-spin relaxation (2013)
Journal Article
Lancaster, T., Blundell, S., & Pratt, F. (2013). Another Dimension: investigations of molecular magnetism using muon-spin relaxation. Physica Scripta, 88(6), Article 068506. https://doi.org/10.1088/0031-8949/88/06/068506

We review examples of muon–spin relaxation measurements on molecule-based magnetic coordination polymers, classified by their magnetic dimensionality. These include the one-dimensional s = 1/2 spin chain Cu(pyz)(NO3)2 and the two-dimensional s = 1/2... Read More about Another Dimension: investigations of molecular magnetism using muon-spin relaxation.

Playing quantum hide-and-seek with the muon: localizing muon stopping sites (2013)
Journal Article
Möller, J., Bonfà, P., Ceresoli, D., Bernardini, F., Blundell, S., Lancaster, T., …Mohamed-Ibrahim, M. (2013). Playing quantum hide-and-seek with the muon: localizing muon stopping sites. Physica Scripta, 88(6), Article 068510. https://doi.org/10.1088/0031-8949/88/06/068510

The most fundamental limitations of a muon-spin relaxation experiment can be the lack of knowledge of the implantation site of the muon and the uncertainty about the muon’s perturbation of its host. Here we review some of the work done on the ‘muon s... Read More about Playing quantum hide-and-seek with the muon: localizing muon stopping sites.

Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO2 (2013)
Journal Article
Xiao, F., Lancaster, T., Baker, P., Pratt, F., Blundell, S., Möller, J., …Jansen, M. (2013). Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO2. Physical review B, 88(18), Article 180401(R). https://doi.org/10.1103/physrevb.88.180401

We present the results of muon-spin relaxation measurements on the triangular lattice Heisenberg antiferromagnet α -KCrO 2 . We observe sharp changes in behavior at an ordering temperature of T c =23 K, with an additional broad feature in the muon-sp... Read More about Magnetic transition and spin dynamics in the triangular Heisenberg antiferromagnet α-KCrO2.

Magnetic fluctuations and spin freezing in nonsuperconducting LiFeAs derivatives (2013)
Journal Article
Wright, J., Pitcher, M., Trevelyan-Thomas, W., Lancaster, T., Baker, P., Pratt, F., …Blundell, S. (2013). Magnetic fluctuations and spin freezing in nonsuperconducting LiFeAs derivatives. Physical review B, 88(6), Article 060401. https://doi.org/10.1103/physrevb.88.060401

We present detailed magnetometry and muon-spin rotation data on polycrystalline samples of overdoped, nonsuperconducting LiFe1−xNixAs (x = 0.1,0.2) and Li1−yFe1+yAs (0 y 0.04) as well as superconducting LiFeAs.While LiFe1−xNixAs exhibits weak antifer... Read More about Magnetic fluctuations and spin freezing in nonsuperconducting LiFeAs derivatives.

Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch (2013)
Journal Article
Ghannadzadeh, S., Möller, J., Goddard, P., Lancaster, T., Xiao, F., Blundell, S., …Schlueter, J. (2013). Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch. Physical review B, 87(24), Article 241102. https://doi.org/10.1103/physrevb.87.241102

We present the results of high-field magnetization and muon-spin relaxation measurements on the coordination polymer CuF 2 (H 2 O) 2 (pyrazine) in pressures up to 22.5 kbar. We observe a transition from a quasi-two-dimensional to a quasi-one-dimensio... Read More about Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch.

Weak magnetic transitions in pyrochlore Bi2Ir2O7 (2013)
Journal Article
Baker, P., Möller, J., Pratt, F., Hayes, W., Blundell, S., Lancaster, T., …Cao, G. (2013). Weak magnetic transitions in pyrochlore Bi2Ir2O7. Physical review B, 87(18), Article 180409. https://doi.org/10.1103/physrevb.87.180409

Muon spin relaxation measurements on Bi 2 Ir 2 O 7 show that it undergoes a bulk magnetic transition at 1.84(3) K. This is accompanied by increases in the muon spin relaxation rate and the amplitude of the nonrelaxing part of the signal. The magnetic... Read More about Weak magnetic transitions in pyrochlore Bi2Ir2O7.

A muon spin relaxation study of the metal-organic magnet Ni(TCNQ)2 (2013)
Journal Article
Berlie, A., Terry, I., Giblin, S., Lancaster, T., & Szablewski, M. (2013). A muon spin relaxation study of the metal-organic magnet Ni(TCNQ)2. Journal of Applied Physics, 113(17), Article 17E304. https://doi.org/10.1063/1.4798616

An investigation of the magnetism of the deuterated form of the metal-organic ferromagnet Ni(TCNQ)2 using the muon spin relaxation technique, is reported. Ni(TCNQ-D4)2 was synthesized in a similar manner to the protio-form, and the crystalline produc... Read More about A muon spin relaxation study of the metal-organic magnet Ni(TCNQ)2.

Quantum states of muons in fluorides (2013)
Journal Article
Moeller, J., Ceresoli, D., Lancaster, T., Marzari, N., & Blundell, S. (2013). Quantum states of muons in fluorides. Physical review B, 87(12), Article 121108. https://doi.org/10.1103/physrevb.87.121108

Muon-spin relaxation (μ + SR) is a sensitive probe of magnetism, but its utility can be severely limited by the lack of knowledge of the muon implantation site and the extent to which the muon perturbs its host. We demonstrate systematically that the... Read More about Quantum states of muons in fluorides.

Low-Field Superconducting Phase of (TMTSF)2ClO4 (2013)
Journal Article
Pratt, F., Lancaster, T., Blundell, S., & Baines, C. (2013). Low-Field Superconducting Phase of (TMTSF)2ClO4. Physical Review Letters, 110(10), Article 107005. https://doi.org/10.1103/physrevlett.110.107005

The low-field phase of the organic superconductor (TMTSF) 2 ClO 4 is studied by muon-spin rotation. The zero temperature limit of the magnetic penetration depth within the TMTSF layers is obtained to be λ ab (0)=0.86(2)  μm . Temperature dependence o... Read More about Low-Field Superconducting Phase of (TMTSF)2ClO4.

Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer (2013)
Journal Article
Burrard-Lucas, M., Free, D. G., Sedlmaier, S. J., Wright, J. D., Cassidy, S. J., Hara, Y., …Clarke, S. J. (2013). Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer. Nature Materials, 12(1), 15-19. https://doi.org/10.1038/nmat3464

The discovery of high-temperature superconductivity in a layered iron arsenide1 has led to an intensive search to optimize the superconducting properties of iron-based superconductors by changing the chemical composition of the spacer layer between a... Read More about Enhancement of the superconducting transition temperature of FeSe by intercalation of a molecular spacer layer.

Persistent dynamics in the S = 1/2 quasi-one-dimensional chain compound Rb4Cu(MoO4)3 probed with muon-spin relaxation (2012)
Journal Article
Lancaster, T., Baker, P., Pratt, F., Blundell, S., Hayes, W., & Prabhakaran, D. (2012). Persistent dynamics in the S = 1/2 quasi-one-dimensional chain compound Rb4Cu(MoO4)3 probed with muon-spin relaxation. Physical review B, 85(18), Article 184404. https://doi.org/10.1103/physrevb.85.184404

We report the results of muon-spin relaxation measurements on the low-dimensional antiferromagnet Rb4Cu(MoO4)3. No long-range magnetic order is observed down to 50 mK implying a ratio TN/J < 0.005 (where J is the principal exchange strength along the... Read More about Persistent dynamics in the S = 1/2 quasi-one-dimensional chain compound Rb4Cu(MoO4)3 probed with muon-spin relaxation.

Spin Waves and Revised Crystal Structure of Honeycomb Iridate Na2IrO3 (2012)
Journal Article
Choi, S., Coldea, R., Kolmogorov, A., Lancaster, T., Mazin, I., Blundell, S., …Taylor, J. (2012). Spin Waves and Revised Crystal Structure of Honeycomb Iridate Na2IrO3. Physical Review Letters, 108(12), Article 127204. https://doi.org/10.1103/physrevlett.108.127204

We report inelastic neutron scattering measurements on Na2IrO3, a candidate for the Kitaev spin model on the honeycomb lattice. We observe spin-wave excitations below 5 meV with a dispersion that can be accounted for by including substantial further-... Read More about Spin Waves and Revised Crystal Structure of Honeycomb Iridate Na2IrO3.

Dimensionality Selection in a Molecule-Based Magnet (2012)
Journal Article
Goddard, P. A., Manson, J. L., Singleton, J., Franke, I., Lancaster, T., Steele, A. J., …Schlueter, J. A. (2012). Dimensionality Selection in a Molecule-Based Magnet. Physical Review Letters, 108(7), Article 077208. https://doi.org/10.1103/physrevlett.108.077208

Gaining control of the building blocks of magnetic materials and thereby achieving particular characteristics will make possible the design and growth of bespoke magnetic devices. While progress in the synthesis of molecular materials, and especially... Read More about Dimensionality Selection in a Molecule-Based Magnet.

Design and commissioning of a high magnetic field muon spin relaxation spectrometer at the ISIS pulsed neutron and muon source (2011)
Journal Article
Lord, J., McKenzie, I., Baker, P., Blundell, S., Cottrell, S., Giblin, S., …Salman, Z. (2011). Design and commissioning of a high magnetic field muon spin relaxation spectrometer at the ISIS pulsed neutron and muon source. Review of Scientific Instruments, 82(7), https://doi.org/10.1063/1.3608114

The high magnetic field (HiFi) muon instrument at the ISIS pulsed neutron and muon source is a state-of-the-art spectrometer designed to provide applied magnetic fields up to 5 T for muon studies of condensed matter and molecular systems. The spectro... Read More about Design and commissioning of a high magnetic field muon spin relaxation spectrometer at the ISIS pulsed neutron and muon source.

Coexistence of magnetic fluctuations and superconductivity in the pnictide high temperature superconductor SmFeAsO(1-x)F(x) measured by muon spin rotation (2008)
Journal Article
Drew, A., Pratt, F., Lancaster, T., Blundell, S., Baker, P., Liu, R., …Bernhard, C. (2008). Coexistence of magnetic fluctuations and superconductivity in the pnictide high temperature superconductor SmFeAsO(1-x)F(x) measured by muon spin rotation. Physical Review Letters, 101(9), Article 097010. https://doi.org/10.1103/physrevlett.101.097010