312 citations · 1k across the 11 of their papers we have counts for
6 papers · 1 filter
Orbital frustration in the S = 1/2 kagome magnet vesignieite, BaCu3V2O8(OD)2
D. Boldrin, K. Knight, A. S. Wills
Here we report crystallographic and magnetic studies on high quality samples of the magnetically frustrated S = 1/2 kagome antiferromagnet vesignieite, BaCu3V2O8(OD)2. Powder neutr…
The High Temperature Phase Transitions of Hexagonal YMnO3
Alexandra S. Gibbs, Kevin S. Knight, Philip Lightfoot
We report a detailed high-resolution powder neutron diffraction investigation of the structural behaviour of the multiferroic hexagonal polymorph of YMnO3 between room temperature…
Giant magneto-elastic coupling in a metallic helical metamagnet
A. Barcza, Z. Gercsi, K. S. Knight +1
Using high resolution neutron diffraction and capacitance dilatometry we show that the thermal evolution of the helimagnetic state in CoMnSi is accompanied by a change in inter-ato…
The beta to gamma (insulator-metal) transition in BiFeO3
Donna C. Arnold, Kevin S. Knight, Gustau Catalan +4
High temperature powder neutron diffraction experiments have been conducted around the reported beta-gamma, insulator-metal phase transition (~ 930 C) in BiFeO3. The results demons…
Zig-zag ladders with staggered magnetic chirality in S = 3/2 compound beta-CaCr2O4
Françoise Damay, Christine Martin, Vincent Hardy +5
The crystal and magnetic structures of the S = 3/2 chain antiferromagnet beta-CaCr2O4 have been investigated by means of specific heat, magnetization, muon relaxation and neutron p…
The ferroelectric-paraelectric phase transition in BiFeO3: crystal structure of the orthorhombic beta-phase
Donna C. Arnold, Kevin S. Knight, Finlay D. Morrison +1
A detailed investigation using variable temperature powder neutron diffraction demonstrates that BiFeO3 undergoes a phase transition from the ferroelectric alpha phase (rhombohedra…