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Título del libro: Condensed Matter Theories
Título del capítulo: Dc resistivity of charged cooper pairs in a simple boson-fermion model of superconductors

Autores UNAM:
MANUEL DE LLANO DE LA GARZA;
Autores externos:

Idioma:
Inglés
Año de publicación:
2008
Palabras clave:

Boson-fermion models; Charged boson conductivity; Gapped cooper-pair dispersion; High-tc superconductivity


Resumen:

An analytic expression for the contribution sB(?, T) to the conductivity from charged bosonic Cooper pairs (CPs) is derived via two-time Green function techniques as a function of the BCS interelectron interaction model parameter ? and temperature T. Within the framework of a binary boson-fermion gas mixture model, it is shown that a self-consistent description of the resistivity data observed in high-temperature superconductors is possible only by assuming the presence of a finite gap between the energy spectra of free fermions and bosonic CPs. © 2009 by World Scientific Publishing Co. Pte. Ltd. All rights reserved.


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