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arXiv · 1201.3309

Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO

P. Babkevich·A. Poole·R. D. Johnson·B. Roessli·D. Prabhakaran·A. T. Boothroyd
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Abstract

We have studied the high temperature multiferroic cupric oxide using polarized neutron diffraction as a function of temperature and applied electric field. We find that the chiral domain population can be varied using an external electric field applied along the b axis. Using representation analysis we derive the incommensurate magnetic structure in the multiferroic phase. The origin of the magnetoelectric coupling is consistent with models based on the inverse Dzyaloshinskii-Moriya interaction, but is different from the simple cycloidal mechanism.

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P. Babkevich, A. Poole, R. D. Johnson, B. Roessli, D. Prabhakaran, A. T. Boothroyd. 2012-01-16. Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO. https://doi.org/10.1103/physrevb.85.134428

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