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Type: Artigo de periódico
Title: Two-gap superconductivity in MgB2
Author: Ghosh, A
Abstract: We study the superconductivity in MgB2 using a tight binding model to investigate the doping dependence of the order parameter and the critical temperature. We consider both the anisotropic and the isotropic s-wave pairing to study the coexistence of the two gaps. A good agreement between the existing experiments and our theoretical curves is observed. The temperature dependence of order parameter, specific heat and penetration depth at half filling are also demonstrated and are found to be in accord with the available experimental predictions.
Subject: MgB2
specific heat
penetration depth
Country: Singapura
Editor: World Scientific Publ Co Pte Ltd
Rights: fechado
Identifier DOI: 10.1142/S0217979203018557
Date Issue: 2003
Appears in Collections:Unicamp - Artigos e Outros Documentos

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