• 文献标题:   Electron scattering in graphene by impurities with electric and magnetic dipole moments
  • 文献类型:   Article
  • 作  者:   MAL NEV VN, SENBETA T, ACHENEFE Y
  • 作者关键词:   graphene, impurity, electric dipole, nanomagnet, scattering amplitude, transport cross section
  • 出版物名称:   PHYSICA ELOWDIMENSIONAL SYSTEMS NANOSTRUCTURES
  • ISSN:   1386-9477 EI 1873-1759
  • 通讯作者地址:   Univ Addis Ababa
  • 被引频次:   1
  • DOI:   10.1016/j.physe.2014.02.020
  • 出版年:   2014

▎ 摘  要

The elastic electron scattering by impurities with electric and magnetic dipoles in graphene is studied with the help of Born approximation. Both types of scatterers give the nonzero cross section of backscattering. The scattering by the impurities with electric dipoles is more efficient even comparing to the scattering by the nanomagnets with anomalous magnetic moments. A comparison of the electron scattering transport cross sections by charged impurities and impurities with electric dipole moments shows that they can be comparable. The scattering by the impurities electric dipoles can be important in limiting the electron mobility in graphene along with the Coulomb scattering. (C) 2014 Elsevier B.V. All rights reserved.