Outputs (115)

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., Pratt, F. L., Singleton, J., Macchi, P., Scatena, R., Barton, A., & 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., Downing, G., Hesjedal, T., Hatton, P., Lancaster, T., Hertel, R., Hovorka, O., & 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., Crisanti, M., Evans, J., Holt, S., Franke, K., Hatton, P., Huddart, B., Lees, M., Pratt, F., Tang, C., Wilson, M., Xiao, F., & 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., Clark, S., Scheuermann, R., Goko, T., Ward, S., Manson, J., Rüegg, C., & 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., Crisanti, M., Barker, J. A., Clark, S. J., Štefančič, A., Hatnean, M. C., Balakrishnan, G., & 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)
Presentation / Conference Contribution
Kirschner, F. K., Lang, F., Pratt, F. L., Lancaster, T., Shi, Y., Guo, Y., Boothroyd, A. T., & Blundell, S. J. (2018, December). Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO3. Presented at 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2017), Sapporo

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.