Now showing items 1-3 of 3
S=½ chain in a staggered field: high-energy bound-spinon state and the effects of a discrete lattice
(American Physical Society, 2005-03-01)
We report an experimental and theoretical study of the antiferromagnetic S=½ chain subject to uniform and staggered fields. Using inelastic neutron scattering, we observe a bound-spinon state at high energies in the linear ...
Direct transition from a disordered to a multiferroic phase on a triangular lattice
(American Physical Society, 2007-06-29)
We report the first direct transition from a paramagnetic and paraelectric phase to an incommensurate multiferroic in the triangular lattice antiferromagnet RbFe(MoO4)2. Ferroelectricity is observed only when the magnetic ...
Field dependence of magnetic ordering in Kagome-staircase compound Ni3V2O8
(American Physical Society, 2006-07-01)
We present powder and single-crystal neutron diffraction and bulk measurements of the Kagome-staircase compound Ni3V2O8 (NVO) in fields up to 8.5 T applied along the c direction. (The Kagome plane is the a-c plane.) This ...