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Bound states for massive Dirac fermions in graphene in a magnetic step field
The European Physical Journal B ( IF 1.6 ) Pub Date : 2021-07-20 , DOI: 10.1140/epjb/s10051-021-00161-4
L. Dell’Anna 1 , A. Alidoust Ghatar 2 , D. Jahani 2
Affiliation  

Abstract

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.

Graphic Abstract



中文翻译:

阶梯磁场中石墨烯中大量狄拉克费米子的束缚态

摘要

我们在存在由阶跃函数建模的不均匀磁场的情况下计算石墨烯中大量狄拉克费米子的光谱。我们发现了磁区边界处模式的带宽和传播速度之间的解析通用关系,展示了如何通过调整质量项来控制这些行进边缘状态的速度。

图形摘要

更新日期:2021-07-22
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