• 文献标题:   Magnetic field effects on the thermoelectric properties of monolayer graphene
  • 文献类型:   Article
  • 作  者:   CRISAN M, GROSU I, TIFREA I
  • 作者关键词:  
  • 出版物名称:   PHYSICA ELOWDIMENSIONAL SYSTEMS NANOSTRUCTURES
  • ISSN:   1386-9477 EI 1873-1759
  • 通讯作者地址:   Calif State Univ Fullerton
  • 被引频次:   0
  • DOI:   10.1016/j.physe.2020.114361
  • 出版年:   2020

▎ 摘  要

We present theoretical results for the temperature and magnetic field dependence of the thermoelectric response in monolayer graphene systems due to scattering by random charged impurity centers. The main effect of the random charged impurities is considered within the random phase approximation (RPA) and consists in a drastically changed energy dependence of the electron scattering time. The system's electrical conductivity (G), Seebeck coefficient (S), thermal conductivity (kappa), and the system's thermoelectric figure of merit (ZT) are considered as function of temperature and external magnetic field. As a general result, the thermoelectric response of the monolayer graphene system is magnetic field dependent in the low temperature regime, but its dependence fades as the temperature is increased.