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

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

Yang, C. L. / He, H. T. / Lu Ding, / Wang, J. N. / Ge, W. K. / Cui, L. J. / Zeng, Y. P.

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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Title :

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

Contributors:

Yang, C. L. (author) / He, H. T. (author) / Lu Ding, (author) / Wang, J. N. (author) / Ge, W. K. (author) / Cui, L. J. (author) / Zeng, Y. P. (author)

Published in:

2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics ; 528

Publication date :

2006-09-01

Size :

1232643 byte

ISBN :

1-4244-0400-2 , 1-4244-0399-5

DOI :

https://doi.org/10.1109/ICIMW.2006.368736

Type of media :

Conference paper