500 citations · 2.6k across the 12 of their papers we have counts for
9 papers
Direct transition from a disordered to a multiferroic phase on a triangular lattice
M. Kenzelmann, G. Lawes, A. B. Harris +9
Competing interactions and geometric frustration provide favourable conditions for exotic states of matter. Such competition often causes multiple phase transitions as a function o…
Inversion symmetry breaking in noncollinear magnetic phase of a triangular lattice antiferromagnet CuFeO2
T. Kimura, J. C. Lashley, A. P. Ramirez
Magnetoelectric and magnetoelastic phenomena correlated with a phase transition into noncollinear magnetic phase have been investigated for single crystals of CuFeO2 with a frustra…
Field dependence of magnetic ordering in Kagome-staircase compound Ni3V2O8
M. Kenzelmann, A. B. Harris, A. Aharony +11
We present powder and single-crystal neutron diffraction and bulk measurements of the Kagome-staircase compound Ni3V2O8 (NVO) in fields up to 8.5T applied along the c-direction. (T…
Competing Magnetic Phases on a "Kagome Staircase"
G. Lawes, M. Kenzelmann, N. Rogado +11
We present thermodynamic and neutron data on Ni_3V_2O_8, a spin-1 system on a kagome staircase. The extreme degeneracy of the kagome antiferromagnet is lifted to produce two incomm…
Low temperature phase transitions and crystal structure of Na0.5CoO2
Q. Huang, M. L. Foo, J. W. Lynn +7
The crystal structure of Na0.5CoO2, determined by powder neutron diffraction, is reported. The structure consists of layers of edge-shared CoO6 octahedra in a triangular lattice, w…
Absence of ferromagnetism in Co and Mn substituted polycrystalline ZnO
G. Lawes, A. S. Risbud, A. P. Ramirez +1
We discuss the properties of semiconducting bulk ZnO when substituted with the magnetic transition metal ions Mn and Co, with substituent fraction ranging from = 0.02 to =…