Abstract
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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.