2011/04/12 by Brian Dellabetta, B Dellabetta, Matthew J. Gilbert +1
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Coherence (philosophical gambling strategy) #Coherence length #Double layer (biology) #Graphene #Lattice (music) #Quantum, superfluid, helium dynamics #Superfluidity #Thermal properties of materials #cond-mat.mes-hall #quant-ph
paper · pdf · doi:10.1088/0953-8984/23/34/345302
published as Journal of Physics: Condensed Matter 23 (2011) · 11 pages, 14 figures
arxiv created 2011/04/12 · openalex publication_date 2011/08/12 · arxiv updated 2011/08/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.