Observation of a large spin-orbit interaction in photoexcited InxGa1-xAs/InyAl1-yAs heterostructures

被引：0
|
作者：
Fujii, K [1 ]
Morikami, Y
Ohyama, T
Gozu, S
Yamada, S
机构：
[1] Osaka Univ, Grad Sch Sci, Osaka 5600043, Japan
[2] RIKEN, Wako, Saitama 3510198, Japan
[3] JAIST Hokuriku, Sch Mat Sci, Tatsunokuchi, Ishikawa 9231292, Japan
来源：
JOURNAL OF SUPERCONDUCTIVITY | 2003年 / 16卷 / 02期
关键词：
cyclotron resonance; far-infrared absorption; zero-field spin splitting; photoexcitation;
D O I：
10.1023/A:1023639520045
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Far-infrared magneto-optical absorption measurements of photoexcited InGaAs/InAlAs heterostructures are carried out. The resonance peak positions of cyclotron resonance due to spin-up and -down electrons can be determined from modulated absorption signals quantitatively. The photopulse excitation by band gap light changes the resonance positions. The amplitude of the spin splitting is found to depend on the excitation intensity and delay time. The change in the spin splitting energy is dominated by the modulation of confinement potential by photoexcitation.
引用
收藏
页码：469 / 472
页数：4
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