Spin currents, spin populations, and dielectric function of noncentrosymmetric semiconductors

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Spin currents, spin populations, and dielectric function of noncentrosymmetric semiconductors

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Title: Spin currents, spin populations, and dielectric function of noncentrosymmetric semiconductors
Author: Rashba, Emmanuel
Citation: Rashba, Emmanuel I. 2004. “Spin Currents, Spin Populations, and Dielectric Function of Noncentrosymmetric Semiconductors.” Physical Review B 70 (16) (October 5). doi:10.1103/physrevb.70.161201.
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Abstract: In Maxwellian electrodynamics, specific properties of the responses to external fields are included in constitutive equations. For noncentrosymmetric semiconductors, spin conductivity can be expressed in terms of the contribution of electric-dipole transitions between spin-split spectrum branches to the dielectric function. In a dissipationless regime, a spin current driven by an external electric field is tantamount to a background current in an equilibrium system with a reduced symmetry. The importance of transients and gradients for efficient spin-flux injection is emphasized.
Published Version: doi:10.1103/physrevb.70.161201
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:25855172
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