• 文献标题:   Low-energy quantum scattering induced by graphene ripples
  • 文献类型:   Article
  • 作  者:   LIU DQ, YE X, CHEN SY, ZHANG SL, MA N
  • 作者关键词:   graphene ripple, quantum scattering, born approximation
  • 出版物名称:   PHYSICS LETTERS A
  • ISSN:   0375-9601 EI 1873-2429
  • 通讯作者地址:   Changzhou Univ
  • 被引频次:   2
  • DOI:   10.1016/j.physleta.2015.10.022
  • 出版年:   2015

▎ 摘  要

We report a quantum study of the carrier scattering induced by graphene ripples. Crucial differences between the scattering induced by the ripple and ordinary scattering were found. In contrast to the latter, in which the Born approximation is valid for high-energy process, the former is valid for the low-energy process with a quite broad energy range. Furthermore, in polar symmetry ripples, the scattering amplitude exhibits a pseudo-spin structure, an additional factor cos theta/2, which leads to an absence of backward scattering. We also elucidate that the scattering cross sections are proportional to the energy cubed of the incident carrier. (C) 2015 Elsevier B.V. All rights reserved.