Magnetization-induced second harmonic generation in a polar ferromagnet

被引：70

作者：

Ogawa, Y

Kaneko, Y

He, JP

Yu, XZ

Arima, T

Tokura, Y

机构：

[1] JST, ERATO, Spin Struct Project, Tsukuba, Ibaraki 3058562, Japan

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

[3] Natl Inst Adv Ind Sci & Technol AIST, CERC, Tsukuba, Ibaraki 3058562, Japan

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

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.92.047401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Second harmonic generation (SHG) induced by spontaneous magnetization has been investigated for a polar ferromagnetic crystal of GaFeO3. The Kerr rotation of the second harmonic light becomes gigantic with decreasing temperature below the magnetic transition temperature (approximate to205 K), e.g., as large as 73degrees at 100 K. The magnetic domains can be visualized by using that large nonlinear Kerr rotation. The spectrum of the magnetization-induced SHG as measured indicates the two-photon resonant electronic process on a Fe3+ ion in the crystal.

引用

页码：4 / 474014

页数：4

共 20 条

[1] MAGNETIC ELECTRIC + CRYSTALLOGRAPHIC PROPERTIES OF GALLIUM IRON OXIDE [J].