• 文献标题:   Magnetoconductivity of Dirac fermions in graphene under charged impurity scatterings
  • 文献类型:   Article
  • 作  者:   YAN XZ, TING CS
  • 作者关键词:  
  • 出版物名称:   NEW JOURNAL OF PHYSICS
  • ISSN:   1367-2630
  • 通讯作者地址:   Chinese Acad Sci
  • 被引频次:   11
  • DOI:   10.1088/1367-2630/11/9/093026
  • 出版年:   2009

▎ 摘  要

On the basis of the self-consistent Born approximation, we solve the Bethe-Salpeter matrix equations for a Cooperon propagator of Dirac fermions in graphene under charged impurity scatterings and a weak external magnetic field. In the absence of the magnetic field, the quantum interference effect in the electric conductivity from the contribution of the Cooperon propagator is studied and a possible weak localization in the system is discussed in terms of the sample length and temperature. The magnetoconductivity stemming from the quantum interference effect is calculated and the obtained results are in good agreement with experimental measurements.