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High temperature crossover in paraconductivity of granular Y1Ba2Cu3O7-y
Ausloos, Marcel; Gillet, François; Laurent, Christian et al.
1991In Zeitschrift für Physik. B, Condensed Matter, 84 (1), p. 13-16
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Abstract :
[en] We have examined the deviation from linearity of the temperature dependence of the electrical resistivity of a YBaCuO ceramics. We have observed at high temperature a crossover behavior toward a logarithmic temperature dependence at lower temperature. It seems relevant to attribute the origin of such a term to a pair breaking mechanism contribution, thus to give a lower bound to the existence of superconductivity fluctuations onset temperature. Our findings also implies that carriers are bosons above T(c).
Disciplines :
Physics
Author, co-author :
Ausloos, Marcel ;  Université de Liège - ULiège > Département de physique > Département de physique
Gillet, François ;  Université de Liège - ULiège > Département des sciences de la vie > Génétique
Laurent, Christian;  Université de Liège - ULiège > Institut d'Electricité Montefiore B28
Clippe, Paulette ;  Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux
Language :
English
Title :
High temperature crossover in paraconductivity of granular Y1Ba2Cu3O7-y
Publication date :
1991
Journal title :
Zeitschrift für Physik. B, Condensed Matter
ISSN :
0722-3277
eISSN :
1431-584X
Publisher :
Springer, Germany
Volume :
84
Issue :
1
Pages :
13-16
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 September 2012

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