Time-dependent magnetotransport in semiconductor nanostructures via the generalized master equation

  • Gudmundsson V
  • Tang C
  • Gainar C
 et al. 
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Abstract

Transport of electrons through two-dimensional semiconductor structures on the nanoscale in the presence of perpendicular magnetic field depends on the interplay of geometry of the system, the leads, and the magnetic length. We use a generalized master equation (GME) formalism to describe the transport through the system without resorting to the Markov approximation. Coupling to the leads results in elastic and inelastic processes in the system that are described to a high order by the integro-differential equation of the GME formalism. Geometrical details of systems and leads leave their fingerprints on the transport of electrons through them. The GME formalism can be used to describe both the initial transient regime immediately after the coupling of the leads to the system and the steady state achieved after a longer time. © 2010 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Generalized master equation
  • Geometry
  • Leads
  • Magneto transport
  • Nanostructures

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