Pair breaking and bound states in disordered superconductors

A.K. Chattopadhyay, R.A. Klemm, D. Sa

    Research output: Contribution to journalArticlepeer-review


    We study the effects of inhomogeneous pairing interactions and impurities in short-coherence-length superconductors. Within the Born approximation, the effects of pairing disorder and magnetic impurities are identical. The T-matrices for pairing disorder sites with and without an impurity give rise to bound states within the BCS (Bardeen-Cooper-Schrieffer) gap, consistent with scanning tunnelling microscopy results on Bi2Sr2CaCu2O8+δ with Zn or Ni impurities.
    Original languageEnglish
    Pages (from-to)L577-L582
    Number of pages6
    JournalJournal of Physics: Condensed Matter
    Issue number31
    Early online date24 Jul 2002
    Publication statusPublished - 12 Aug 2002


    • approximation theory
    • bismuth compounds
    • additives doping
    • Eigenvalues and eigenfunctions
    • fermi level
    • hamiltonians
    • impurities
    • mathematical models
    • matrix algebra
    • parameter estimation
    • scanning tunneling microscopy
    • stoichiometry
    • vectors
    • magnetic impurities
    • oxide superconductors


    Dive into the research topics of 'Pair breaking and bound states in disordered superconductors'. Together they form a unique fingerprint.

    Cite this