Publication Type
Journal
Journal Name
Physical Review Letters
Publication Date
Page Number
037206
Volume
106
Issue
3
Abstract
The magnetic phase diagram of a geometrically-frustrated triangular-lattice antiferromagnet is
evaluated as a function of external magnetic field and anisotropy using a trial spin state built from
harmonics of a fundamental ordering wavevector. A non-collinear incommensurate state, observed
to be chiral and ferroelectric in CuFeO2, is sandwiched between a collinear state with 4 sublattices
(SLs) and a 5-SL state. Chiral and non-collinear 5-SL states are predicted to appear at fields above
and below the collinear 5-SL states.
