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Title: Non-equilibrium study of spin wave interference in systems with both Rashba and Dresselhaus (001) spin-orbit coupling

We study the electron spin transport in two dimensional electron gas (2DEG) system with both Rashba and Dresselhaus (001) spin-orbital coupling (SOC). We assume spatial behavior of spin precession in the non-equilibrium transport regime, and study also quantum interference induced by non-Abelian spin-orbit gauge field. The method we adopt in this article is the non-equilibrium Green's function within a tight binding framework. We consider one ferromagnetic lead which injects spin polarized electron to a system with equal strength of Rashba and Dresselhaus (001) SOC, and we observe the persistent spin helix property. We also consider two ferromagnetic leads injecting spin polarized electrons into a pure Dresselhaus SOC system, and we observe the resultant spin wave interference pattern.
Authors:
; ;  [1] ;  [2]
  1. Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)
  2. Department of Applied Physics and Chemistry, University of Taipei, No. 1, Aiguo W. Rd., Zhongzheng Dist., Taipei City 100, Taiwan (China)
Publication Date:
OSTI Identifier:
22273718
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL STRUCTURE; ELECTRON GAS; ELECTRONS; FERROMAGNETISM; GREEN FUNCTION; INTERFERENCE; L-S COUPLING; SPIN; SPIN ORIENTATION; SPIN WAVES; TWO-DIMENSIONAL CALCULATIONS