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Coupled Spin Waves and Crystalline Electric Field Levels in Multiferroic ErFeO3
Published
Author(s)
Mark P. Zic, Wesley T. Fuhrman, Kefeng Wang
Abstract
We report an inelastic neutron scattering study of multiferroic ERFeO3, a compund that possesses three different magnetic states and exhibits signatures of Fe3+-ER3+ cooperative coupling. A crystalline electric field excitation at 6 meV exhibit additional energy splitting upon cooling through 4.5 K, with mode-dependent polarization. One excitation shows canting out of the bc-plane, but another displays canting away from the a-axis, a feature that is not seen in low temperature diffraction measurements. Simulations highlight that these cooperative effects are not adequately described by a Heisenberg Hamiltonian.
Zic, M.
, Fuhrman, W.
and Wang, K.
(2021),
Coupled Spin Waves and Crystalline Electric Field Levels in Multiferroic ErFeO<sub>3</sub>, Journal of Applied Physics
(Accessed May 29, 2023)