Ferroelectric polarization flop in a frustrated magnet MnWO4 induced by a magnetic field

被引：409

作者：

Taniguchi, K. ^{[1
]}

Abe, N.

Takenobu, T.

Iwasa, Y.

Arima, T.

机构：

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

[2] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808579, Japan

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.97.097203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The relationship between magnetic order and ferroelectric properties has been investigated for MnWO4 with a long-wavelength magnetic structure. Spontaneous electric polarization is observed in an elliptical spiral spin phase. The magnetic-field dependence of electric polarization indicates that the noncollinear spin configuration plays a key role for the appearance of the ferroelectric phase. An electric polarization flop from the b direction to the a direction has been observed when a magnetic field above 10 T is applied along the b axis. This result demonstrates that an electric polarization flop can be induced by a magnetic field in a simple system without rare-earth 4f moments.

引用

页数：4

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