Polarization reversal in multiferroic TbMnO3 with a rotating magnetic field direction

被引：57

作者：

Abe, N. ^{[1
]}

Taniguchi, K.

Ohtani, S.

Takenobu, T.

Iwasa, Y.

Arima, T.

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.99.227206

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 (P-a) is memorized even in the zero field where P-a is absent. The polarization direction can be reversed by rotating the magnetic-field direction in the ab plane.

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页数：4

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