The effect of disorder in superfluid double layer graphene

B. Dellabetta, M. J. Gilbert

Research output: Contribution to journalArticle

Abstract

We investigate the superfluid properties of disordered double layer graphene systems using the non-equilibrium Greens 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 BoseEinstein 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.

Original languageEnglish (US)
Article number345302
JournalJournal of Physics Condensed Matter
Volume23
Issue number34
DOIs
StatePublished - Aug 31 2011

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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