Influence of the Magnetic Field on the Graphene Conductivity

• 作者: Egor Ivanovich Kukhar Sergey Viktorovich Kryuchkov
• 来源期刊: 现代物理(英文)
• 学科: 医学
• 关键词: GRAPHENE MAGNETOCONDUCTIVITY Magnetic OSCILLATIONS Shubnikov-de Haaz Effect GRAPHENE SUPERLATTICE
• 年，卷（期）: 2012,（9）
• 页码范围: 994-1001
• 页数: 8页
• 分类号: R73

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.