Current-induced pseudospin polarization in silicene

doi:10.1088/1674-1056/23/9/098503

Abstract The pseudospin polarization induced by an external electric field in silicene in the presence of weakly spin-independent impurities is considered theoretically in the linear response regime based on Green's function method. We study the effects of the interplay between the sublattice potential and the intrinsic spin orbit coupling on the pseudospin polarization. We show that the pseudospin polarization perpendicular to the electric field is independent of the impurity parameter, while the pseudospin polarization in the direction of the electric field is sensitive to the impurity parameter. The dependences of the pseudospin polarizations on the chemical potential are studied.

Keywords: silicene pseudospin polarization Green’s function

Received: 21 March 2014
Revised: 23 April 2014
Accepted manuscript online:

PACS:	85.75.-d	(Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)
	71.70.Ej	(Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)
	72.80.Vp	(Electronic transport in graphene)

Fund: Project supported by the Shandong Young Scientists Award Fund, China (Grant No. 2012CL001).

Corresponding Authors: Zhu Guo-Bao
E-mail: zhuguobao@gmail.com

Cite this article:

Wang Lei (王磊), Zhu Guo-Bao (朱国宝) Current-induced pseudospin polarization in silicene 2014 Chin. Phys. B 23 098503

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