307 citations · 677 across the 8 of their papers we have counts for
7 papers
Spin glass behavior in frustrated quantum spin system CuAl2O4 with a possible orbital liquid state
R. Nirmala, Kwang-Hyun Jang, Hasung Sim +10
CuAl2O4 is a normal spinel oxide having quantum spin, S=1/2 for Cu2+. It is a rather unique feature that the Cu2+ ions of CuAl2O4 sit at a tetrahedral position, not like the usual…
Structure and superconductivity of LiFeAs
Michael J. Pitcher, Dinah R. Parker, Paul Adamson +3
The lithium ions in Lithium iron arsenide phases with compositions close to LiFeAs have been located using powder neutron diffraction. These phases exhibit superconductivity at tem…
Charge disproportionation and collinear magnetic order in the frustrated triangular antiferromagnet AgNiO2
E. Wawrzynska, R. Coldea, E. M. Wheeler +5
We report a high-resolution neutron diffraction study of the crystal and magnetic structure of the orbitally-degenerate frustrated metallic magnet AgNiO2. At high temperatures the…
Orbital degeneracy removed by charge order in triangular antiferromagnet AgNiO2
E. Wawrzynska, R. Coldea, E. M. Wheeler +6
We report a high-resolution neutron diffraction study on the orbitally-degenerate spin-1/2 hexagonal antiferromagnet AgNiO2. A structural transition to a tripled unit cell with exp…
Large Anisotropic Thermal Expansion Anomaly near the Superconducting Transition Temperature in MgB2
J. D. Jorgensen, D. G. Hinks, P. G. Radaelli +2
An anisotropic lattice anomaly near the superconducting transition temperature, Tc, was observed in MgB2 by high-resolution neutron powder diffraction. The a-axis thermal expansion…
Comparison of the Crystal Structure of the Heavy-Fermion Materials CeCoIn5, CeRhIn5 and CeIrIn5
E. G. Moshopoulou, J. L. Sarrao, P. G. Pagliuso +4
The crystal structure of the recently discovered heavy-fermion (HF) superconductor CeCoIn5 (Tc = 2.3 K) has been determined by high-resolution neutron powder diffraction. It is tet…