Abstract
Within the BCS theory of superconductivity we calculate the superconducting gap at a 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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García, N., Esquinazi, P. Mean Field Superconductivity Approach in Two Dimensions. J Supercond Nov Magn 22, 439–444 (2009). https://doi.org/10.1007/s10948-009-0485-6
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DOI: https://doi.org/10.1007/s10948-009-0485-6