Ballistic charge carrier transmission through graphene multi-barrier structures in uniform magnetic field

被引：4
|
作者：
Zubarev, A. [1 ]
Dragoman, D. [1 ]
机构：
[1] Univ Bucharest, Dept Phys, Bucharest 077125, Romania
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2014年 / 47卷 / 42期
关键词：
graphene; transfer matrix; magnetic barrier;
D O I：
10.1088/0022-3727/47/42/425302
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigate charge carrier transport in graphene multi-barrier structures placed in a uniform magnetic field. The transmission coefficient is found analytically by generalizing the transfer matrix method for the case of graphene regions subjected to a uniform magnetic field. The transmission coefficient through the structure can be modulated by varying the gate voltages, the magnetic field and/or the width of the gated regions. Such a configuration could be used in multiple-valued logic circuits, since it has several output states with discrete and easily selectable transmission/current values.
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页数：7
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