Interband excitation induced Spin photocurrent in an InGaAs/InAlAs two-dimensional electron gas

被引：0
|
作者：
Yang, C. L. [1 ]
He, H. T. [1 ]
Ding, Lu [1 ]
Wang, J. N. [1 ]
Ge, W. K. [1 ]
Cui, L. J. [1 ]
Zeng, Y. P. [1 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Phys & Inst Nano Sci & Technol, Hong Kong, Hong Kong, Peoples R China
来源：
CONFERENCE DIGEST OF THE 2006 JOINT 31ST INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 14TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS | 2006年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The converse effects of spin photocurrent and current induced spin polarization are experimentally demonstrated in a two-dimensional electron gas system with Rashba spin splitting. Their consistency with the strength of the Rashba coupling as measured for the same system from beating of the Shubnikov-de Haas oscillations reveals a unified picture for the spin photocurrent, current-induced spin-polarization, and spin-orbit coupling. In addition, the observed spectral inversion of the spin photocurrent indicates a system with dominating structure inversion asymmetry.
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页码：528 / 528
页数：1
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