• 文献标题:   Monte Carlo studies of low-field electron transport in monolayer silicene and graphene
  • 文献类型:   Article, Proceedings Paper
  • 作  者:   BOROWIK P, THOBEL JL, ADAMOWICZ L
  • 作者关键词:   chargecarrier mobility, electronic transport, graphene, monte carlo simulation, silicene
  • 出版物名称:   PHYSICA STATUS SOLIDI AAPPLICATIONS MATERIALS SCIENCE
  • ISSN:   1862-6300 EI 1862-6319
  • 通讯作者地址:   Univ Lille 1
  • 被引频次:   6
  • DOI:   10.1002/pssa.201600380
  • 出版年:   2016

▎ 摘  要

Electronmobility and diffusion coefficients in monolayer silicene and graphene are calculated by Monte Carlo simulations using a simplified band structure with linear energy bands. Temperature evolution of the low-field mobility and diffusion coefficients is presented. Calculated characteristics of the low-field mobility in silicene exhibit a 1/T-3 dependence for nondegenerate electron gas conditions, which is attributed to dominant acoustic phonon scattering and to the linear band structure of the material. In degenerate conditions, a 1/T dependence is found in silicene. In graphene, there is no such simple power relation since optical and acoustic phonon scattering have comparable influences on electron transport. It is also found that electron-electron scattering only slightly modifies the low-field electron mobility in a degenerate electron gas. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim