• 文献标题:   Disorder-induced metallicity in amorphous graphene
  • 文献类型:   Article
  • 作  者:   HOLMSTROM E, FRANSSON J, ERIKSSON O, LIZARRAGA R, SANYAL B, BHANDARY S, KATSNELSON MI
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121 EI 1550-235X
  • 通讯作者地址:   Univ Austral Chile
  • 被引频次:   20
  • DOI:   10.1103/PhysRevB.84.205414
  • 出版年:   2011

▎ 摘  要

We predict a transition to metallicity when a sufficient amount of disorder is induced in graphene. Calculations were performed by means of a first-principles stochastic quench method. The resulting amorphous graphene can be seen as nanopatches of graphene that are connected by a network of disordered small and large carbon rings. The buckling of the lattice is minimal and is a result of averaging of counteracting random in-plane stress forces. The linear response conductance is obtained by a model theory as function of lattice distortions, and results in a similar behavior as the first-principles calculation.