Spin-dependent electron-impurity scattering in two-dimensional electron systems

A. Pályi, J. Cserti

Research output: Article

1 Citation (Scopus)

Abstract

We present a theoretical study of elastic spin-dependent electron scattering caused by a charged impurity in the vicinity of a two-dimensional electron gas. We find that the symmetry properties of the spin-dependent differential scattering cross section are different for an impurity located in the plane of the electron gas and for one at a finite distance from the plane. We show that in the latter case asymmetric ("skew") scattering can arise if the polarization of the incident electron has a finite projection on the plane spanned by the normal vector of the two-dimensional electron gas and the initial propagation direction. In specially prepared samples this scattering mechanism may give rise to a Hall-type effect in the presence of an in-plane magnetic field.

Original languageEnglish
Article number241304
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number24
DOIs
Publication statusPublished - dec. 1 2008

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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