Toward a theory of the quantum Hall effect in graphene

被引:26
|
作者
Gorbar, E. V. [1 ]
Gusynin, V. P. [1 ]
Miransky, V. A. [2 ]
机构
[1] Bogolyubov Inst Theoret Phys, UA-03680 Kiev, Ukraine
[2] Univ Western Ontario, Dept Appl Math, London, ON N6A 5B7, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
D O I
10.1063/1.2981388
中图分类号
O59 [应用物理学];
学科分类号
摘要
We analyze a gap equation for the propagator of Dirac quasiparticles and conclude that in graphene in a magnetic field, the order parameters connected with the quantum Hall ferromagnetism dynamics and those connected with the magnetic catalysis dynamics necessarily coexist (the latter have the form of Dirac masses and correspond to excitonic condensates). This feature of graphene could lead to important consequences, in particular, for the existence of gapless edge states. Solutions of the gap equation corresponding to recently experimentally discovered novel plateaus in graphene in strong magnetic fields are described. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2981388]
引用
收藏
页码:790 / 793
页数:4
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