• 文献标题:   Spin relaxation in bilayer graphene: the role of electron-electron scattering
  • 文献类型:   Article
  • 作  者:   KATIYAR S, GHOSH B, SALIMATH AK
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS AMATERIALS SCIENCE PROCESSING
  • ISSN:   0947-8396 EI 1432-0630
  • 通讯作者地址:   Indian Inst Technol
  • 被引频次:   4
  • DOI:   10.1007/s00339-016-9595-8
  • 出版年:   2016

▎ 摘  要

This paper investigates the influence of electron-electron scattering on spin relaxation length in bilayer graphene using semiclassical Monte Carlo simulation. Both D'yakonov-P'erel and Elliot-Yafet mechanisms are considered for spin relaxation. It is shown that spin relaxation length decreases by 17 % at 300 K on including electron-electron scattering. The reason of this variation in spin relaxation length is that the ensemble spin is modified upon an e-e collision, and also e-e scattering rate is greater than phonon scattering rate which causes change in spin transport profile.