| Issue |
Europhys. Lett.
Volume 41, Number 6, March II 1998
|
|
|---|---|---|
| Page(s) | 659 - 664 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00209-3 | |
| Published online | 01 September 2002 | |
Self-test of spin fluctuation pairing
1
Department of Physics, University of Notre Dame, Notre Dame,
Indiana 46556 USA
2
Department of Physics, Arizona State University,
Tempe, Arizona 85287-1504 USA
Received:
29
September
1997
Accepted:
22
January
1998
The critical self-test of the
spin fluctuation pairing model of high-temperature superconductivity,
associated with the relative
suppression of Tc by Ni and Zn impurities
on Cu sites,
has not been
satisfied for any material for which the test has been performed,
including 
.
In all high-temperature
superconductors that have been measured, except
BCS-like 
, Ni and Zn suppress Tc
virtually the same,
which is inconsistent
with cuprate plane superconductivity that results from
either i) BCS-like (phonon-like) polarization pairing or
ii) spin fluctuation pairing.
The observed
Tc-suppression in all such superconductors,
including , is consistent
with
BCS-like
charge-reservoir superconductivity.
PACS: 74.25.-q – General properties; correlations between physical properties in normal and superconducting states / 74.72.Jt – Other cuprates / 74.20.De – Phenomenological theories (two-fluid, Ginzburg-Landau, etc.)
© EDP Sciences, 1998
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