Quantum Hall Effect and Different Zero-Energy Modes of Graphene

被引：3
|
作者：
Setare, M. R. [1 ,2 ]
Jahani, D. [1 ,2 ]
机构：
[1] Payame Noor Univ, Dept Sci, Bijar, Iran
[2] Islamic Azad Univ, Kermanshah Branch, Kermanshah, Iran
来源：
CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 09期
关键词：
SUPERSYMMETRY; SPECTRUM; FIELD;
D O I：
10.1088/0256-307X/28/9/097302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of an inhomogeneous magnetic field, which varies inversely with distance on the ground state energy level of graphene, is studied. We analytically show that graphene under the influence of a magnetic field arising from a straight long current-carrying wire (proportional to the magnetic field from carbon nanotubes and nanowires) exhibits zero-energy solutions and find that contrary to the case of a uniform magnetic field for which the zero-energy modes show the localization of electrons entirely on just one sublattice corresponding to a single valley Hamiltonian, zero-energy solutions in this case reveal that the probabilities for the electrons to be on both sublattices, say A and B, are the same.
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页数：4
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