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Spin hall effect on the kagome lattice with rashba spin-orbit interaction

文献类型:期刊论文

作者Liu, Guocai3; Zhang, Ping1,2; Wang, Zhigang1; Li, Shu-Shen3
刊名Physical review b
出版日期2009
卷号79期号:3页码:7
关键词Berry phase Fermi level Spin hall effect Spin-orbit interactions
ISSN号1098-0121
DOI10.1103/physrevb.79.035323
通讯作者Zhang, ping(zhang_ping@iapcm.ac.cn)
英文摘要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.
WOS关键词VAPOR-PHASE EPITAXY ; HUBBARD-MODEL ; GROUND-STATES ; LINE GRAPHS ; SEMICONDUCTORS ; SPINTRONICS
WOS研究方向Physics
WOS类目Physics, Condensed Matter
语种英语
WOS记录号WOS:000262978200091
出版者AMER PHYSICAL SOC
URI标识http://www.irgrid.ac.cn/handle/1471x/2427783
专题半导体研究所
通讯作者Zhang, Ping
作者单位1.Inst Appl Phys & Computat Math, LCP, Beijing 100088, Peoples R China
2.Peking Univ, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714
Liu, Guocai,Zhang, Ping,Wang, Zhigang,et al. Spin hall effect on the kagome lattice with rashba spin-orbit interaction[J]. Physical review b,2009,79(3):7.
APA Liu, Guocai,Zhang, Ping,Wang, Zhigang,&Li, Shu-Shen.(2009).Spin hall effect on the kagome lattice with rashba spin-orbit interaction.Physical review b,79(3),7.
MLA Liu, Guocai,et al."Spin hall effect on the kagome lattice with rashba spin-orbit interaction".Physical review b 79.3(2009):7.

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来源:半导体研究所

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