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Correlation between magnetocapacitance effect and polarization flop direction in a slanted magnetic field in multiferroic helimagnets

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Published under licence by IOP Publishing Ltd
, , Citation Nobuyuki Abe et al 2011 J. Phys.: Conf. Ser. 320 012088 DOI 10.1088/1742-6596/320/1/012088

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1 Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Japan

2 Department of Advanced Materials Science, University of Tokyo, Kashiwa, Japan

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1742-6596/320/1/012088

Abstract

The relationship between the magnetocapacitance effect and rotation direction of electric polarization (P) in a canted magnetic field has been investigated for multiferroic RMnO3 (R = Tb1−xDyx and Eu0.6Y0.4). We observed a clear correlation between the enhancement of the magnetocapacitance effect and the rotation direction of P in a P-flop transition. These results indicate that the mobility and the stability of the 90° domain wall in a P-flop transition are dominated by its thickness.

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10.1088/1742-6596/320/1/012088