Electronic transport in two-dimensional strained Dirac materials under multi-step Fermi velocity barrier: transfer matrix method for supersymmetric systems

Anh-Luan Phan () and Dai-Nam Le ()
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Anh-Luan Phan: Duy Tan University
Dai-Nam Le: Ton Duc Thang University

The European Physical Journal B: Condensed Matter and Complex Systems, 2021, vol. 94, issue 8, 1-16

Abstract: Abstract In recent years, graphene and other two-dimensional Dirac materials like silicene, germanene, etc. have been studied from different points of view: from mathematical physics, condensed matter physics to high energy physics. In this study, we utilize both supersymmetric quantum mechanics (SUSY-QM) and transfer matrix method (TTM) to examine electronic transport in two-dimensional Dirac materials under the influences of multi-step deformation as well as multi-step Fermi velocity barrier. The effects of multi-step effective mass and multi-step applied fields are also taken into account in our investigation. Results show the possibility of modulating the Klein tunneling of Dirac electron using strain or electric field. Graphic abstract

Date: 2021
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DOI: 10.1140/epjb/s10051-021-00176-x

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