• 文献标题:   Impurity induced broadening of Drude peak in strained graphene
  • 文献类型:   Article
  • 作  者:   SHUBNYI VO, SHARAPOV SG, SKRYPNYK YV
  • 作者关键词:   graphene, strain, optical conductivity, point defect, drude weight
  • 出版物名称:   CONDENSED MATTER PHYSICS
  • ISSN:   1607-324X EI 2224-9079
  • 通讯作者地址:   Taras Shevchenko Natl Univ Kyiv
  • 被引频次:   1
  • DOI:   10.5488/CMP.21.33703
  • 出版年:   2018

▎ 摘  要

The recent experimental study of the far-infrared transmission spectroscopy of monolayer graphene has shown that the Drude peak width increases by more than 10% per 1% of applied mechanical strain, while the Drude weight remains unchanged. We study the influence of the strain on the resonant impurity scattering. We propose a mechanism of augmentation of the scattering rate due to the shift in the position of resonance. Using the Lifshitz model of substitutional impurities, we investigate changes in the Drude peak weight and width as functions of the Fermi energy, impurity concentration and magnitude of the impurity potential.