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

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

2012-01-16

arxiv.org/abs/1201.3309v1

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 3 figures

Scientific paper

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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