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 April 23, 2025)
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Coupled Spin Waves and Crystalline Electric Field Levels in Multiferroic ErFeO3
Published
Author(s)
, 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.Citation
Journal of Applied Physics
Volume
130
Issue
1
Pub Type
Journals
Keywords
multiferroic, magnon, crystalline electric field
Citation
Issues
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Created July 6, 2021, Updated September 13, 2021