Pure spin current from one-photon absorption of linearly polarized light in noncentrosymmetric semiconductors

We show that one-photon absorption of linearly polarized light should produce pure spin currents in noncentrosymmetric semiconductors, including even bulk GaAs. We present 14x14 k.p model calculations of the effect in GaAs, including strain, and pseudopotential calculations of the effect in wurtzite...

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Bibliographic Details
Published in:Physical review letters 2005-03, Vol.94 (9), p.096603.1-096603.4, Article 096603
Main Authors: BHAT, R. D. R, NASTOS, F, NAJMAIE, Ali, SIPE, J. E
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Physics
Theory of electronic transport
scattering mechanisms
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Summary:We show that one-photon absorption of linearly polarized light should produce pure spin currents in noncentrosymmetric semiconductors, including even bulk GaAs. We present 14x14 k.p model calculations of the effect in GaAs, including strain, and pseudopotential calculations of the effect in wurtzite CdSe.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.94.096603