Optical magnetoelectric effect in the polar GaFeO3 ferrimagnet

被引：147

作者：

Jung, JH ^{[1
]}

Matsubara, M

Arima, T

He, JP

Kaneko, Y

Tokura, Y

机构：

[1] Japan Sci & Technol Agcy, ERATO, Spin Superstruct Project, Tsukuba, Ibaraki 3058562, Japan

[2] Inha Univ, Dept Phys, Inchon 402751, South Korea

[3] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[4] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[5] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[6] Natl Inst Adv Ind Sci & Technol, CERC, Tsukuba, Ibaraki 3050046, Japan

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.93.037403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The optical magnetoelectric (ME) effect, i.e., the change of optical absorption upon the reversal of the light propagation direction, has been investigated for a polar ferrimagnet GaFeO3. For dipole- and spin-forbidden d-d transition bands located at 1.2-2.3 eV, a clear signal of the optical ME effect (Deltaalphatsimilar to3x10(-3)) is observed with an applied magnetic field as low as 500 Oe and a sample thickness (t) of 50 mum. The observation of a large ME effect in the present compound suggests a possible route to magnification of this novel phenomenon for application.

引用

页码：037403 / 1

页数：4

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