• 文献标题:   Exchange-induced charge inhomogeneities in rippled neutral graphene
  • 文献类型:   Article
  • 作  者:   BREY L, PALACIOS JJ
  • 作者关键词:  
  • 出版物名称:   PHYSICAL REVIEW B
  • ISSN:   1098-0121
  • 通讯作者地址:   CSIC
  • 被引频次:   46
  • DOI:   10.1103/PhysRevB.77.041403
  • 出版年:   2008

▎ 摘  要

A mechanism that induces charge density variations in corrugated graphene is proposed. Here it is shown how the interplay between lattice deformations and exchange interactions can induce charge separation, i.e., puddles of electrons and holes, for realistic deformation values of the graphene sheet. The induced charge density lies in the range of 10(11) - 10(12) cm(-2), which is compatible with recent measurements.