• 文献标题:   Fingerprints of disorder source in graphene
  • 文献类型:   Article
  • 作  者:   ZHAO PL, YUAN SJ, KATSNELSON MI, DE RAEDT H
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   2469-9950 EI 2469-9969
  • 通讯作者地址:   Univ Groningen
  • 被引频次:   7
  • DOI:   10.1103/PhysRevB.92.045437
  • 出版年:   2015

▎ 摘  要

We present a systematic study of the electronic, transport, and optical properties of disordered graphene, including the next-nearest-neighbor hopping. We show that this hopping has a nonnegligible effect on resonant scattering but is of minor importance for long-range disorder such as charged impurities, random potentials, or hoppings induced by strain fluctuations. Different types of disorders can be recognized by their fingerprints appearing in the profiles of dc conductivity, carrier mobility, optical spectroscopy, and Landau level spectrum. The minimum conductivity 4e(2)/h found in the experiments is dominated by long-range disorder and the value of 4e(2)/pi h is due to resonant scatterers only.