Light-induced change in magnetization-induced second harmonic generation of Fe0.52Rh0.48 films

被引：4
|
作者：
Nuida, Tomohiro [1 ]
Yamauchi, Takahiro [1 ]
Ohkoshi, Shin-ichi [1 ,2 ]
机构：
[1] Univ Tokyo, Dept Chem, Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan
[2] Japan Sci & Technol Agcy, Chiyoda Ku, Tokyo 1020075, Japan
来源：
JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 06期
基金：
日本科学技术振兴机构;
关键词：
ULTRAFAST SPIN DYNAMICS; PHASE-TRANSITION; TIME-SCALE; MOMENTS; NICKEL; FERH;
D O I：
10.1063/1.3634114
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Irradiating with pulsed laser light induces high-speed optical switching of surface magnetization-induced second harmonic generation (MSHG) in Fe0.52Rh0.48 thin films at room temperature. The second harmonic rotation angle (theta(SH)) of 25.0 degrees was recorded in the irradiated film at 2000 Oe. This theta(SH) value is as much as 740 times larger than the normal Kerr rotation angle (0.034 degrees at 388 nm). The observed gigantic theta(SH) value is attributed to surface MSHG on the ferromagnetic phase in Fe0.52Rh0.48, which is generated by the optical heating. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3634114]
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页数：4
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