Transport and partial localization of electrons in strained short-period semiconductor superlattices

被引：0
|
作者：
L. G. Gerchikov
K. Aulenbacher
Yu. A. Mamaev
E. J. Riehn
Yu. P. Yashin
机构：
[1] St. Petersburg State Polytechnical University,Institute of Nuclear Physics
[2] Mainz University,undefined
来源：
Semiconductors | 2012年 / 46卷
关键词：
Quantum Efficiency; Femtosecond Laser Pulse; Space Charge Region; Distribute Bragg Reflector; Spin Relaxation Time;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The transport of polarized electrons in photocathodes based on highly strained semiconductor superlattices is studied experimentally and theoretically. In the experiments, the electron emission from the photocathode excited by a femtosecond laser pulse is studied by time-resolved measurements. The response time and the spin relaxation time are experimentally determined. The photoresponse of the photocathodes is calculated, and the results are correlated with the experimental data. A conclusion regarding the partial localization of photoelectrons in the superlattice is drawn.
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页码：67 / 74
页数：7
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