Details of Disorder Matter in 2Dd-Wave Superconductors

2000/05/28 by W. A. Atkinson, P. J. Hirschfeld, A. H. MacDonald +1 · 5 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Superconductivity in MgB2 and Alloys #cond-mat.dis-nn #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevlett.85.3926

published as Physical Review Letters 85, 3926-3929 (2000) · 5 pages, 4 figures

arxiv created 2000/05/28 · openalex publication_date 2000/10/30 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Within numerically exact solutions of the Bogoliubov-de Gennes equations, we demonstrate that discrepancies between predicted low-energy quasiparticle properties in disordered 2D d-wave superconductors occur because of the unanticipated importance of disorder model details and normal state particle-hole symmetry. For the realistic case, which is best described by a binary alloy model without particle-hole symmetry, we predict density-of-state suppression below an energy scale which appears to be correlated with the corresponding single impurity resonance.

Citations

• Quasiparticle density of states in dirty high-Tcsuperconductors

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