Polarization reversal in multiferroic TbMnO3 with a rotating magnetic field direction |
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Authors: | Abe N Taniguchi K Ohtani S Takenobu T Iwasa Y Arima T |
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Affiliation: | Department of Physics, Tohoku University, Sendai 980-8578, Japan. |
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Abstract: | For the memory application of magnetoelectric multiferroics, not only bistability (i.e., ferroelectricity) but also the switching of the polarization direction with some noneverlasting stimulus is necessary. Here, we report a novel method for the electric polarization reversal in TbMnO3 without the application of an electric field or heat. The direction of the magnetic-field-induced polarization along the a axis (Pa) is memorized even in the zero field where Pa is absent. The polarization direction can be reversed by rotating the magnetic-field direction in the ab plane. |
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