Transport equations and spin-charge propagating mode in a strongly confined two-dimensional hole gas

Taylor L. Hughes, Yaroslaw B. Bazaliy, Bogdan Andrei Bernevig

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

We find that the spin-charge motion in a strongly confined two-dimensional hole gas (2DHG) supports a propagating mode of cubic dispersion apart from the diffusive mode due to momentum scattering. Propagating modes seem to be a generic property of systems with spin-orbit coupling. Through a rigorous Keldysh approach, we obtain the transport equations for the 2DHG, we analyze the behavior of the hole spin relaxation time, the diffusion coefficients, and the spin-charge coupled motion.

Original languageEnglish (US)
Article number193316
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume74
Issue number19
DOIs
StatePublished - Nov 29 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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