Consistency in formulation of spin current and torque associated with a variance of angular momentum

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	Wang, Y; Xia, K; Su, ZB; Ma, ZS; Wang, Y , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
	Consistency in formulation of spin current and torque associated with a variance of angular momentum
Source Publication	PHYSICAL REVIEW LETTERS
Keyword	Semiconductors Electrons
Abstract	Based on the Noether's theorem, we develop systematically and rigorously the spin-dependent formulation of the conservation laws. The effect of the electronic polarization due to the spin-orbit coupling is included in the Maxwell equations. The polarization is related to the antisymmetric components of spin current, and it provides a possibility to measure the spin current directly. The variances of spin and orbit angular momentum currents imply a torque on the "electric dipole" associated with the moving electron. The dependencies of the torque on the polarization and the force on the motions of spin-polarized electrons in a two-dimensional electron gas with the Rashba spin-orbit coupling are discussed.
	2006
ISSN	0031-9007
Volume	96 Issue:6 Pages:-
Subject Area	Physics
Indexed By	SCI
Citation statistics	Cited Times:44[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/6039
Collection	SCI期刊论文
Corresponding Author	Wang, Y , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Recommended Citation GB/T 7714	Wang, Y,Xia, K,Su, ZB,et al. Consistency in formulation of spin current and torque associated with a variance of angular momentum[J]. PHYSICAL REVIEW LETTERS,2006,96(6):-.
APA	Wang, Y,Xia, K,Su, ZB,Ma, ZS,&Wang, Y , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.(2006).Consistency in formulation of spin current and torque associated with a variance of angular momentum.PHYSICAL REVIEW LETTERS,96(6),-.
MLA	Wang, Y,et al."Consistency in formulation of spin current and torque associated with a variance of angular momentum".PHYSICAL REVIEW LETTERS 96.6(2006):-.

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