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Updated: Jun 19, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Exchange bias driven by the Dzyaloshinskii-Moriya interaction and ferroelectric polarization at G-type
Shuai Dong1, Kunihiko Yamauchi, Seiji Yunoki
1Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA.
Abstract:
Exchange bias is usually rationalized invoking spin pinning effects caused by uncompensated antiferromagnetic interfaces. However, for compensated antiferromagnets other extrinsic factors, such as interface roughness or spin canting, have to be considered to produce a small uncompensation. As an alternative, here we propose two (related) possible mechanisms, driven by the intrinsic Dzyaloshinskii-Moriya interaction and ferroelectric polarization, for the explanation of exchange bias effects in perovskites with compensated G-type antiferromagnetism. One of the mechanisms is only active when a multiferroic material is involved and it is controllable by electric fields.
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