Tunneling of massive dirac fermions in graphene through time-periodic potential

Ahmed Jellal (), Miloud Mekkaoui, El Bouâzzaoui Choubabi and Hocine Bahlouli

The European Physical Journal B: Condensed Matter and Complex Systems, 2014, vol. 87, issue 6, 1-11

Abstract: The energy spectrum of a graphene sheet subject to a single barrier potential having a time periodic oscillating height and subject to a magnetic field is analyzed. The corresponding transmission is studied as function of the incident energy and potential parameters. Quantum interference within the oscillating barrier has an important effect on quasiparticles tunneling. In particular the time-periodic electrostatic potential generates additional sidebands at energies ϵ + lħω (l=0, ±1,...) in the transmission probability originating from the photon absorption or emission within the oscillating barrier. Due to numerical difficulties in truncating the resulting coupled channel equations we limited ourselves to low quantum channels, i.e. l=0, ± 1. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014

Keywords: Mesoscopic and Nanoscale Systems (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1140/epjb/e2014-41096-3

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