[en] The electronic contribution to the specific heat and the thermal conductivity of high-T-c superconductors is calculated with a three-dimensional band structure including saddle points and a Lawrence-Doniach coupling between the CuO2 planes. The electronic thermal diffusivity is deduced for s- and d-wave symmetry of the order parameter. Data on DyBa2Cu3O7-y and Y0.9Ca0.1Ba2Cu3O7-z and theory are in good agreement on the change of the slope near T-c.
Disciplines :
Physics
Author, co-author :
Dorbolo, Stéphane ; Université de Liège - ULiège > Département de physique > Physique statistique
Bougrine, Hassan ; Université de Liège - ULiège > CARE "Le Réseau des bibliothèques" > Bibliothèque des Sciences et Techniques
Ausloos, Marcel ; Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Language :
English
Title :
Electronic contribution to the thermal diffusivity: DyBa2Cu3O7-y and Y0.9Ca0.1Ba2Cu3O7-z
Publication date :
1998
Journal title :
International Journal of Modern Physics. B
ISSN :
0217-9792
Publisher :
World Scientific Publishing Company, Singapore, Singapore
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