• 文献标题:   The effect of adsorption on static conductivity of epitaxial graphene
  • 文献类型:   Article
  • 作  者:   DAVYDOV SY
  • 作者关键词:  
  • 出版物名称:   TECHNICAL PHYSICS LETTERS
  • ISSN:   1063-7850 EI 1090-6533
  • 通讯作者地址:   Russian Acad Sci
  • 被引频次:   0
  • DOI:   10.1134/S1063785014120219
  • 出版年:   2014

▎ 摘  要

An analytical expression for adsorption-induced changes in the static conductivity of the adlayer-single-sheet-graphene-substrate system has been obtained using the Kubo-Greenwood formalism with allowance for the dipole-dipole repulsion in the adlayer. The cases of both metal and semiconductor substrates have been considered. The results are applied to description of the hydrogen monolayer-single-sheet-graphene-tungsten substrate system. Numerical estimations show that the magnitude of the effect of the adsorbed hydrogen monolayer on the static conductivity sigma(eg) of epitaxial graphene on tungsten is on the order of the sigma(eg) value.