Multiband superconductivity in Pb, H under pressure and CaBeSi from ab initio calculations

Bersier, C. and Floris, A. and Cudazzo, P. and Profeta, G. and Sanna, A. and Bernardini, F. and Monni, M. and Pittalis, S. and Sharma, S. and Glawe, H. and Continenza, A. and Massidda, S. and Gross, E. K. U. (2009) Multiband superconductivity in Pb, H under pressure and CaBeSi from ab initio calculations. Journal of Physics: Condensed Matter, 21 (16). p. 164209. ISSN 0953-8984

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Item Type:Article
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Superconductivity in Pb, H under extreme pressure and CaBeSi, in the framework of the density functional theory for superconductors, is discussed. A detailed analysis on how the electron–phonon and electron–electron interactions combine together to determine the superconducting gap and critical temperature of these systems is presented. Pb, H under pressure and CaBeSi are multigap superconductors. We will address the question under which conditions does a system exhibits this phenomenon. The presented results contribute to the understanding of multiband and anisotropic superconductivity, which has received a lot of attention since the discovery of MgB2, and show how it is possible to describe the superconducting properties of real materials on a fully ab initio basis.

Subjects:F Physical Sciences > F321 Solid state Physics
Divisions:College of Science > School of Mathematics and Physics
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ID Code:22800
Deposited On:05 Jun 2016 21:02

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