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Mean field superconductivity approach in two dimensions: Hydrogen in Graphite

2009/01/05 by N. Garcı́a, N. García, García, N. +2
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Fiber-reinforced polymer composites #Graphene research and applications #Graphite, nuclear technology, radiation studies #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.0901.0523

5 pages and three figures

openalex publication_date 2009/01/05 · arxiv created 2009/02/11 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

Within the BCS theory of superconductivity we calculate the superconducting gap at zero temperature for metallic hydrogen-graphene system in order to estimate the superconducting critical temperature of quasi two dimensional highly oriented pyrolytic graphite. The obtained results are given as a function of the hydrogen-induced density of carriers n and their effective mass m^⋆. The obtained gap shows a Maxwell-like distribution with a maximum of ∼ 60 K at n ∼ 3 × 1014 cm-2 and m^⋆/m = 1. The theoretical results are discussed taking into account recent experimental evidence for granular superconductivity in graphite.

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