Inertial effect on spin-orbit coupling and spin transport

B. Basu, Debashree Chowdhury

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We theoretically study the renormalization of inertial effects on the spin dependent transport of conduction electrons in a semiconductor by taking into account the interband mixing on the basis of k→{dot operator}p→ perturbation theory. In our analysis, for the generation of spin current we have used the extended Drude model where the spin-orbit coupling plays an important role. We predict enhancement of the spin current resulting from the renormalized spin-orbit coupling effective in our model in cubic and non-cubic crystals. Attention has been paid to clarify the importance of gauge fields in the spin transport of this inertial system. A theoretical proposition of a perfect spin filter has been done through the Aharonov-Casher like phase corresponding to this inertial system. For a time dependent acceleration, effect of k→{dot operator}p→ perturbation on the spin current and spin polarization has also been addressed. Furthermore, achievement of a tunable source of polarized spin current through the non uniformity of the inertial spin-orbit coupling strength has also been discussed.

Original languageEnglish
Pages (from-to)47-60
Number of pages14
JournalAnnals of Physics
Volume335
DOIs
StatePublished - 1 Aug 2013
Externally publishedYes

Keywords

  • Dirac electron
  • Inertial effect
  • Kane model
  • Spin current
  • Spin filter
  • Spin-orbit coupling

ASJC Scopus subject areas

  • General Physics and Astronomy

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