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Magnetic-field-induced charge current in quantum wells with spin-orbit coupling

Journal Article


Abstract


  • We calculated the charge current response in a two-dimensional electron gas

    in the presence of Rashba spinorbit coupling and electronimpurity

    scattering, under an in-plane time-dependent applied magnetic field. Our

    formalism rests on the density matrix method and quantum transport

    equation. It was shown that there exists a magnetic-field-induced charge

    transport due to the photon-excited electrons scattered by impurities in the

    presence of spinorbit coupling. The dependence of the induced current on

    the Rashba spinorbit coupling strength is obtained at high frequencies of the

    magnetic field. Our result provides a potentially useful method to produce

    and manipulate charge current by using the magnetic field alone in

    semiconductor spintronic systems.

Authors


Publication Date


  • 2007

Citation


  • Lyu, P. & Zhang, C. (2007). Magnetic-field-induced charge current in quantum wells with spin-orbit coupling. Nanotechnology, 18 457403-1-457403-5.

Scopus Eid


  • 2-s2.0-35748973549

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2756

Start Page


  • 457403-1

End Page


  • 457403-5

Volume


  • 18

Abstract


  • We calculated the charge current response in a two-dimensional electron gas

    in the presence of Rashba spinorbit coupling and electronimpurity

    scattering, under an in-plane time-dependent applied magnetic field. Our

    formalism rests on the density matrix method and quantum transport

    equation. It was shown that there exists a magnetic-field-induced charge

    transport due to the photon-excited electrons scattered by impurities in the

    presence of spinorbit coupling. The dependence of the induced current on

    the Rashba spinorbit coupling strength is obtained at high frequencies of the

    magnetic field. Our result provides a potentially useful method to produce

    and manipulate charge current by using the magnetic field alone in

    semiconductor spintronic systems.

Authors


Publication Date


  • 2007

Citation


  • Lyu, P. & Zhang, C. (2007). Magnetic-field-induced charge current in quantum wells with spin-orbit coupling. Nanotechnology, 18 457403-1-457403-5.

Scopus Eid


  • 2-s2.0-35748973549

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/2756

Start Page


  • 457403-1

End Page


  • 457403-5

Volume


  • 18