SPILL CORRELATION AND SUPERCONDUCTIVITY IN OVERDOPED TLSR2CACU2O7-DELTA

Authors
MAGISHI K KITAOKA Y ZHENG GQ ASAYAMA K KONDO T SHIMAKAWA Y MANAKO T KUBO Y
Citation
K. Magishi et al., SPILL CORRELATION AND SUPERCONDUCTIVITY IN OVERDOPED TLSR2CACU2O7-DELTA, Czechoslovak journal of Physics, 46, 1996, pp. 1091-1092
Citations number
17
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
2
Pages
1091 - 1092
Database
ISI
SICI code
0011-4626(1996)46:<1091:SCASIO>2.0.ZU;2-A
Abstract
The Gaussian spin-echo decay rate, 1/T-2G, of Cu-63, which is related to the antiferromagnetic spin correlation length, xi, has been measure d in overdoped TlSr2CaCu2O7-delta with T-c = 70 K, 52 K, and 10 K. It has been found that the decrease of xi under a critical value makes th e pairing interaction weaken, resulting in the marked suppression in T -c with increasing holes.