Influence of the Magnetic Field on the Graphene Conductivity  

作　　者：Sergey Viktorovich Kryuchkov Egor Ivanovich Kukhar 

机构地区：[1]Volgograd State Socio-Pedagogical University, Volgograd, Russia

出　　处：《Journal of Modern Physics》2012年第9期994-1001,共8页现代物理（英文）

摘　　要：The transversal conductivity of the gap-modification of the graphene was studied in the cases of weak nonquatizing and quantizing magnetic field. In the case of nonquantizing magnetic field the expression of the current density was derived from the Boltzmann equation. The dependence of conductivity and Hall conductivity on the magnetic field intensity was investigated. In the case of quantizing magnetic field the expression for the graphene transversal magnetoconductivity taking into account the scattering on the acoustic phonons was derived in the Born approximation. The graphene conductivity dependence on the magnetic field intensity was investigated. The graphene conductivity was shown to have the oscillations when the magnetic field intensity changes. The features of the Shubnikov-de Haas oscillations in graphene superlattice are discussed.The transversal conductivity of the gap-modification of the graphene was studied in the cases of weak nonquatizing and quantizing magnetic field. In the case of nonquantizing magnetic field the expression of the current density was derived from the Boltzmann equation. The dependence of conductivity and Hall conductivity on the magnetic field intensity was investigated. In the case of quantizing magnetic field the expression for the graphene transversal magnetoconductivity taking into account the scattering on the acoustic phonons was derived in the Born approximation. The graphene conductivity dependence on the magnetic field intensity was investigated. The graphene conductivity was shown to have the oscillations when the magnetic field intensity changes. The features of the Shubnikov-de Haas oscillations in graphene superlattice are discussed.

关 键 词：GRAPHENE MAGNETOCONDUCTIVITY Magnetic OSCILLATIONS Shubnikov-de Haaz Effect GRAPHENE SUPERLATTICE 

分 类 号：R73[医药卫生—肿瘤]