• 文献标题:   Extrinsic Spin Hall Effect Induced by Resonant Skew Scattering in Graphene
  • 文献类型:   Article
  • 作  者:   FERREIRA A, RAPPOPORT TG, CAZALILLA MA, NETO AHC
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW LETTERS
  • ISSN:   0031-9007 EI 1079-7114
  • 通讯作者地址:   Natl Univ Singapore
  • 被引频次:   68
  • DOI:   10.1103/PhysRevLett.112.066601
  • 出版年:   2014

▎ 摘  要

We show that the extrinsic spin Hall effect can be engineered in monolayer graphene by decoration with small doses of adatoms, molecules, or nanoparticles originating local spin-orbit perturbations. The analysis of the single impurity scattering problem shows that intrinsic and Rashba spin-orbit local couplings enhance the spin Hall effect via skew scattering of charge carriers in the resonant regime. The solution of the transport equations for a random ensemble of spin-orbit impurities reveals that giant spin Hall currents are within the reach of the current state of the art in device fabrication. The spin Hall effect is robust with respect to thermal fluctuations and disorder averaging.