Magnetic dispersion and anisotropy in multiferroic BiFeO3
M. Matsuda, R. S. Fishman, T. Hong, C. H. Lee, T. Ushiyama, Y., Yanagisawa, Y. Tomioka, and T. Ito
TL;DR
This study provides a detailed analysis of magnetic dispersion and anisotropy in BiFeO3, revealing excitation gaps and enabling precise measurement of magnetic interactions, which highlight the strong magneto-electric coupling in this multiferroic material.
Contribution
The paper presents the first full magnetic dispersion relations of BiFeO3, identifying excitation gaps and accurately quantifying magnetic interactions such as the Dzyaloshinskii-Moriya interaction.
Findings
Observation of two magnetic excitation gaps
Precise determination of Dzyaloshinskii-Moriya interaction
Evidence of strong magneto-electric coupling
Abstract
We have determined the full magnetic dispersion relations of multiferroic BiFeO3. In particular, two excitation gaps originating from magnetic anisotropies have been clearly observed. The direct observation of the gaps enables us to accurately determine the Dzyaloshinskii-Moriya (DM) interaction and the single ion anisotropy. The DM interaction supports a strong magneto-electric coupling in this compound.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.