Bound states for massive Dirac fermions in graphene in a magnetic step field

被引：2
|
作者：
Dell'Anna, L. [1 ]
Alidoust Ghatar, A. [2 ]
Jahani, D. [2 ]
机构：
[1] Univ Padua, Dipartimento Fis & Astron, Via F Marzolo 8, I-35151 Padua, Italy
[2] Mat & Energy Res Ctr, Tehran, Iran
来源：
EUROPEAN PHYSICAL JOURNAL B | 2021年 / 94卷 / 07期
关键词：
ELECTRONIC-PROPERTIES;
D O I：
10.1140/epjb/s10051-021-00161-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We calculate the spectrum of massive Dirac fermions in graphene in the presence of an inhomogeneous magnetic field modeled by a step function. We find an analytical universal relation between the bandwidths and the propagating velocities of the modes at the border of the magnetic region, showing how, by tuning the mass term, one can control the speed of these traveling edge states.
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页数：6
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