• Spin and charge transport in the presence of spin-orbit interaction

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      https://www.ias.ac.in/article/fulltext/pram/058/02/0293-0311

    • Keywords

       

      Spin-orbit interaction; two-dimensional electron gas; Landauer-Büttiker formula

    • Abstract

       

      We present the study of spin and charge transport in nanostructures in the presence of spin-orbit (SO) interaction. Single band tight binding Hamiltonians for Elliot-Yafet and Rashba SO interaction are derived. Using these tight binding Hamiltonians and spin resolved Landauer-Büttiker formula, spin and charge transport is studied. Specifically numerical results are presented for a new method to perform magnetic scanning tunneling microscopy with non-magnetic tip but in the presence of Elliot-Yafet SO interaction. The spin relaxation phenomena in two-dimensional electron gas in the presence of Rashba SO interaction are studied and contrary to naive expectation, it is shown that disorder helps to reduce spin relaxation.

    • Author Affiliations

       

      T P Pareek1 P Bruno1

      1. Max-Planck-Institute für Mikrostrukturphysik, Weinberg 2, Halle - D-06120, Germany
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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