Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Volume
85
Abstract
Monte-Carlo and variational calculations are used to revise the phase diagram of the magnetically- frustrated material CuFeO2. For fields 50 T < H < 65 T, a new spin flop phase is predicted between a canted three-sublattice phase and the conventional conical spin-flop phase. This phase has wavevector Q ≈ (0.8π, 0.43π) and is commensurate in the x direction but incommensurate in the y direction. A canted five-sublattice phase is predicted between the multiferroic phase and either a collinear five-sublattice phase for pure CuFeO2 or a canted three-sublattice phase for Al- or Ga-doped CuFeO2.
