Electrical control of dynamic spin splitting induced by exchange interaction as revealed by time-resolved Kerr rotation in a degenerate spin-polarized electron gas

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	Electrical control of dynamic spin splitting induced by exchange interaction as revealed by time-resolved Kerr rotation in a degenerate spin-polarized electron gas
	Zhang, F ; Zheng, HZ ; Ji, Y ; Liu, J ; Li, GR
刊名	epl
	2008
卷号	83 期号:4 页码:art. no. 47006
关键词	GAAS QUANTUM-WELLS
ISSN号	0295-5075
通讯作者	zhang, f, chinese acad sci, inst semicond, state key lab superlattices & microstruct, pob 912, beijing 100083, peoples r china. 电子邮箱地址: hzzheng@red.semi.ac.cn
中文摘要	manipulation of the spin degree of freedom has been demonstrated in a spin-polarized electron plasma in a heterostructure by using exchange-interaction-induced dynamic spin splitting rather than the rashba and dresselhaus types, as revealed by time-resolved kerr rotation. the measured spin splitting increases from 0.256 mev to 0.559 mev as the bias varies from -0.3 v to -0.6 v. both the sign switch of the kerr signal and the phase reversal of larmor precessions have been observed with biases, which all fit into the framework of exchange-interaction-induced spin splitting. the electrical control of it may provide a new effective scheme for manipulating spin-selected transport in spin fet-like devices. copyright (c) epla, 2008.
学科主题	半导体物理
收录类别	SCI
资助信息	national basic research program of china 2006cb932801 2007cb924904 special research programs of the chinese academy of sciences the authors would like to thank z. c. niu for the sample growth and p. xu for the sample processing. this work was in part supported by the national basic research program of china no. 2006cb932801 and no. 2007cb924904, and also by special research programs of the chinese academy of sciences.
语种	英语
公开日期	2010-03-08
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/6472]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Zhang, F,Zheng, HZ,Ji, Y,et al. Electrical control of dynamic spin splitting induced by exchange interaction as revealed by time-resolved Kerr rotation in a degenerate spin-polarized electron gas[J]. epl,2008,83(4):art. no. 47006.
APA	Zhang, F,Zheng, HZ,Ji, Y,Liu, J,&Li, GR.(2008).Electrical control of dynamic spin splitting induced by exchange interaction as revealed by time-resolved Kerr rotation in a degenerate spin-polarized electron gas.epl,83(4),art. no. 47006.
MLA	Zhang, F,et al."Electrical control of dynamic spin splitting induced by exchange interaction as revealed by time-resolved Kerr rotation in a degenerate spin-polarized electron gas".epl 83.4(2008):art. no. 47006.