Chattopadhyay, A.K., Klemm, R.A. and Sa, D. (2002). Pair breaking and bound states in disordered superconductors. Journal of Physics: Condensed Matter, 14 (31), L577-L582.
Abstract
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.
| Publication DOI: | https://doi.org/10.1088/0953-8984/14/31/101 |
|---|---|
| Divisions: | College of Engineering & Physical Sciences > Systems analytics research institute (SARI) |
| Uncontrolled Keywords: | 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 |
| Publication ISSN: | 1361-648X |
| Last Modified: | 26 Aug 2025 07:20 |
| Date Deposited: | 16 Dec 2014 12:20 |
| Full Text Link: | |
| Related URLs: |
http://www.scop ... a06d31821b291c8
(Scopus URL) |
PURE Output Type: | Article |
| Published Date: | 2002-08-12 |
| Published Online Date: | 2002-07-24 |
| Authors: |
Chattopadhyay, A.K.
(
0000-0001-5499-6008)
Klemm, R.A. Sa, D. |
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