• 文献标题:   The effect of disorder in superfluid double layer graphene
  • 文献类型:   Article
  • 作  者:   DELLABETTA B, GILBERT MJ
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICSCONDENSED MATTER
  • ISSN:   0953-8984
  • 通讯作者地址:   Univ Illinois
  • 被引频次:   4
  • DOI:   10.1088/0953-8984/23/34/345302
  • 出版年:   2011

▎ 摘  要

We investigate the superfluid properties of disordered double layer graphene systems using the non-equilibrium Green's function formalism. The complexity of such a structure makes it imperative to study the effects of lattice vacancies which will inevitably arise during fabrication. We present and compare room temperature performance characteristics for both ideal and disordered double layer graphene systems in an effort to illustrate the behavior of a Bose-Einstein condensate in the presence of lattice defects under non-equilibrium conditions. We find that lattice vacancies spread throughout the top layer past the coherence length have a reduced effect compared to the ideal case. However, vacancies concentrated near the metal contacts within the coherence length significantly alter the interlayer superfluid transport properties.