Thermodynamic transitions in inhomogeneous d-wave superconductors

Abstract

We study the spectral and thermodynamic properties of inhomogeneous d-wave superconductors within a model where the inhomogeneity originates from atomic scale pair disorder. This assumption has been shown to be consistent with the small charge and large gap modulations observed by scanning tunnelling spectroscopy (STS) on BSCCO. Here we calculate the specific heat within the same model, and show that it gives a semi-quantitative description of the transition width in this material. This model therefore provides a consistent picture of both surface sensitive spectroscopy and bulk thermodynamic properties.

arXiv comment4 pages, 4 figures

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• Breakdown of universal transport in correlated d-wave superconductors
• Universal Disorder in Bi2Sr2CaCu2O8+x
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• Disorder and Zeeman coupling induced gap-filling states in the nodeless chiral superconducting Bi/Ni bilayer system
• Phase Diagram of the Attractive Hubbard Model with Inhomogeneous Interactions
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• Inhomogeneity, Fluctuations, and Gap Filling in Overdoped Cuprates
• Influence of the atomic-scale inhomogeneity of the pair interaction on extracted from the STM spectra characteristics of high-$T_c$ superconductors
• The Low-Temperature Phenomenology of Gap Inhomogeneity in the Cuprate Superconductors: High-Energy Granularity, Low-Energy Homogeneity, and Spectral Kinks
• Signatures of superconducting gap inhomogeneities in optical properties
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