Density of states for dirty d-wave superconductors: A unified and dual approach for different types of disorder

Claudio Chamon; Christopher Mudry

doi:10.1103/physrevb.63.100503

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Density of states for dirty d-wave superconductors: A unified and dual approach for different types of disorder

Claudio Chamon·Christopher Mudry

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Abstract

A two-parameter field theoretical representation is given of a 2-dimensional dirty d-wave superconductor that interpolates between the Gaussian limit of uncorrelated weak disorder and the unitary limit of a dilute concentration of resonant scatterers. It is argued that a duality holds between these two regimes from which follows that a linearly vanishing density of states in the Gaussian limit transforms into a diverging one in the unitary limit arbitrarily close to the Fermi energy.

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Claudio Chamon, Christopher Mudry. 2000-08-16. Density of states for dirty d-wave superconductors: A unified and dual approach for different types of disorder. https://doi.org/10.1103/physrevb.63.100503

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