Transmission via triangular double barrier and magnetic fields in graphene

Document Type : Regular article

Authors

1 Laboratory of Theoretical Physics Faculty of Sciences Ibn Maachou Street

2 Physics Department, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia

Abstract

We study the transmission probability of Dirac fermions in graphene scattered by a triangular

double barrier potential in the presence of an external magnetic field. Our system made of two

triangular potential barrier regions separated by a well region characterized by an energy gap

Gp . Solving our Dirac-like equation and matching the solutions at the boundaries we express our

transmission and reflection coefficients in terms of transfer matrix. We show in particular that the

transmission exhibits oscillation resonances that are manifestation of the Klein tunneling effect.

Keywords

Main Subjects

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Volume 2, Issue 1
We would like to dedicate this issue to the memory of Prof. John D. Barrow.
January 2022
Pages 49-70
  • Receive Date: 13 October 2021
  • Revise Date: 12 January 2022
  • Accept Date: 20 January 2022