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Proceedings Paper

Impurity scattering in anisotropic superconductors and interband sign reversal of the order parameter
Author(s): Igor I. Mazin; A. A. Golubov
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Paper Abstract

We discuss various mechanisms that can lead to interband sign reversal of the order parameter in a multi-band superconductor. In particular, we generalize Abrikosov-Gor'kov solution of the problem of weakly coupled superconductor with magnetic and nonmagnetic impurities on the case of arbitrary order parameter anisotropy, including extreme cases as d-pairing or interband sign reversal of the order parameter, and show that interband scattering by magnetic impurities can stabilize an interband sign-reversal state. We discuss a possibility of such state in YBa2Cu3O7 in the context of various experiments: Josephson tunneling, neutron scattering, isotope effect measurements.

Paper Details

Date Published: 10 June 1996
PDF: 8 pages
Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); doi: 10.1117/12.241762
Show Author Affiliations
Igor I. Mazin, Carnegie Institution of Washington (United States)
A. A. Golubov, ISI and Institute of Solid State Physics (Russia)

Published in SPIE Proceedings Vol. 2696:
Spectroscopic Studies of Superconductors
Ivan Bozovic; Dirk van der Marel, Editor(s)

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