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

被引：0
|
作者：
Ahmed Jellal
Miloud Mekkaoui
El Bouâzzaoui Choubabi
Hocine Bahlouli
机构：
[1] Saudi Center for Theoretical Physics,
[2] Theoretical Physics Group,undefined
[3] Faculty of Sciences,undefined
[4] Chouaïb Doukkali University,undefined
[5] Physics Department,undefined
[6] Faculty Polydisciplinary,undefined
[7] Sultan Moulay Slimane University,undefined
[8] Physics Department,undefined
[9] King Fahd University of Petroleum and Minerals,undefined
来源：
The European Physical Journal B | 2014年 / 87卷
关键词：
Mesoscopic and Nanoscale Systems;
D O I：
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摘要：
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.
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