High temperature crossover in paraconductivity of granular Y1Ba2Cu3O7-y

Ausloos, Marcel; Gillet, François; Laurent, Christian; Clippe, Paulette

doi:10.1007/BF01453753

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High temperature crossover in paraconductivity of granular Y1Ba2Cu3O7-y

Ausloos, Marcel; Gillet, François; Laurent, Christian et al.

1991 • In Zeitschrift für Physik. B, Condensed Matter, 84 (1), p. 13-16

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https://hdl.handle.net/2268/131156

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10.1007/BF01453753

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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 :

Issue :

Pages :

13-16

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 25 September 2012

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