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Thermal conductivity, electrical resistivity and specific heat of La1.85Sr0.15CuO4 superconductor

✍ Scribed by K. Mori; K. Noto; Y. Ogiso; T. Igarashi; Y. Isikawa; K. Sato

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
377 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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✦ Synopsis

The temperature dependences of the thermal conductivity and electrical resistivity of La1.85SrO.1SCU04 superconductor have been measured in the temperature range from 1.8K to 260K in order to investigate the scattering mechanism of conduction. Although the thermal conductivity does not exhibit a striking increase below T e , such as in the systems Y-Ba-Cu-O(I-2-3 type) and Bi-Pb-Sr-Ca-Cu-O, the lattice thermal conductivity was dominant. The T 2 -dependence of the thermal conductivity was also observed below 10K, like as those of Y-Ba-Cu-O and Bi-Pb-Sr-Ca-Cu-O. The low temperature specific heat has been also measured in the temperature range from 1.8K to43K and it turned out that the electronic specific heat term was little and the Debye temperature, eD, was about 221K.

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