Outputs (115)

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.