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The European Physical Journal B

, Volume 70, Issue 3, pp 397–401 | Cite as

Spin precession and electron spin polarization wave in [001]-grown quantum wells

  • G. H. LiuEmail author
  • Y. H. Chen
  • C. H. Jia
  • Z. G. Wang
Mesoscopic and Nanoscale Systems

Abstract

We theoretically study the spatial behaviors of spin precessions modulated by an effective magnetic field in a two-dimensional electron system with spin-orbit interaction. Through analysis of interaction between the spin and the effective magnetic field, we find some laws of spin precession in the system, by which we explain some previous phenomena of spin precession, and predict a controllable electron spin polarization wave in [001]-grown quantum wells. The shape of the wave, like water wave, mostly are ellipse-like or circle-like, and the wavelength is anisotropic in the quantum wells with two unequal coupling strengths of the Rashba and Dresselhaus interactions, and is isotropic in the quantum wells with only one spin orbit interaction.

PACS

72.25.Dc Spin polarized transport in semiconductors 71.70.Ej Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect 85.75.Hh Spin polarized field effect transistors 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  1. 1.Key laboratory of semiconductor material science, Institute of semiconductorsChinese academy of scienceBeijingP.R. China

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