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Updated: May 29, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Observation of Universal Topological Magnetoelectric Switching in Multiferroic GdMn_{2}O_{5}
Haowen Wang1, Fan Wang2, Ming Yang1
1Huazhong University of Science and Technology, Wuhan National High Magnetic Field Center and School of Physics, Wuhan 430074, China.
Abstract:
Topological magnetoelectricity was recently revealed as an emergent topic, which opens a unique route to precisely control magnetoelectric functionality. Here we report the synchronous magnetic-electric-cycle operation of topological magnetoelectric switching in GdMn_{2}O_{5}. Compared with pure magnetic-cycle operation, this topological winding can be accessed in a much broader parameter space, i.e., orientation of the magnetic field is not limited to the magic angle and the effect can persist up to the Curie temperature. The fine-tuning of the free energy landscape is responsible for this topological behavior.
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