Spin Hall effect on the kagome lattice with Rashba spin-orbit interaction

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	Spin Hall effect on the kagome lattice with Rashba spin-orbit interaction
	Liu GC ; Zhang P ; Wang ZG ; Li SSS
刊名	physical review b
	2009
卷号	79 期号:3 页码:art. no. 035323
关键词	Berry phase Fermi level spin Hall effect spin-orbit interactions
ISSN号	1098-0121
通讯作者	zhang p inst appl phys & computat math lcp pob 8009 beijing 100088 peoples r china. e-mail address: zhang_ping@iapcm.ac.cn
中文摘要	we study the spin hall effect in the kagome lattice with rashba spin-orbit coupling. the conserved spin hall conductance sigma(s)(xy) (see text) and its two components, i.e., the conventional term sigma(s0)(xy) and the spin-torque-dipole term sigma(s tau)(xy), are numerically calculated, which show a series of plateaus as a function of the electron fermi energy epsilon(f). a consistent two-band analysis, as well as a berry-phase interpretation, is also given. we show that these plateaus are a consequence of various fermi-surface topologies when tuning epsilon(f). in particular, we predict that compared to the case with the fermi surface encircling the gamma point in the brillouin zone, the amplitude of the spin hall conductance with the fermi surface encircling the k points is twice enhanced, which makes it highly meaningful in the future to systematically carry out studies of the k-valley spintronics.
学科主题	半导体物理
收录类别	SCI
资助信息	nsfc 10604010 105340306077606160521001national basic research program of china 2009cb929103 p.z. was supported by the nsfc under grants no. 10604010 and no. 10534030, and by the national basic research program of china (973 program) under grant no. 2009cb929103. s.-s. l. was supported by the nsfc under grants no. 60776061 and no. 60521001.
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/172111/7375]
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	Liu GC,Zhang P,Wang ZG,et al. Spin Hall effect on the kagome lattice with Rashba spin-orbit interaction[J]. physical review b,2009,79(3):art. no. 035323.
APA	Liu GC,Zhang P,Wang ZG,&Li SSS.(2009).Spin Hall effect on the kagome lattice with Rashba spin-orbit interaction.physical review b,79(3),art. no. 035323.
MLA	Liu GC,et al."Spin Hall effect on the kagome lattice with Rashba spin-orbit interaction".physical review b 79.3(2009):art. no. 035323.