The temperature dependence of the zero-bias conductance, the electronic specific heat and the ultrasonic attenuation in high-Tc superconductors have been analyzed within the framework of a phenomenological model, based on a density of states expressed as a superposition of a linear term to a BCS standard one. By using the same values of the fitting parameters, we have obtained a satisfactory agreement with the experimental results, together with a consistent physical interpretation of the weight of the linear contribution.

Influence of a linear term on the density of states of high-Tc superconductors

CUCOLO, Anna Maria;NOCE, Canio;ROMANO, Alfonso
1992

Abstract

The temperature dependence of the zero-bias conductance, the electronic specific heat and the ultrasonic attenuation in high-Tc superconductors have been analyzed within the framework of a phenomenological model, based on a density of states expressed as a superposition of a linear term to a BCS standard one. By using the same values of the fitting parameters, we have obtained a satisfactory agreement with the experimental results, together with a consistent physical interpretation of the weight of the linear contribution.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4527063
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