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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.
Citation
Journal of Applied Physics
Volume
130
Issue
1

Keywords

multiferroic, magnon, crystalline electric field

Citation

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 20, 2024)
Created July 6, 2021, Updated September 13, 2021