Thermal conductivity of the HTS system YBa2Cu3–<i>x</i>Ag<i>x</i>O7–<i>δ</i>
E. AndersB. I. Verkin Physicotechnical Institute of Low Temperatures, Ukrainian Academy of Sciences, Kharkov 1V. V. DerevyankoPhysicotechnical Institute, Kharkov 2I. N. KudryavtsevKharkov State University 3К. Э. НемченкоKharkov State University 3S. V. StartsevB. I. Verkin Physicotechnical Institute of Low Temperatures, Ukrainian Academy of Sciences, Kharkov 1V. A. FinkelPhysicotechnical Institute, Kharkov 2
ABI
Abstract
Thermal conductivity κ(T) of the HTS ceramic YBa2Cu3–x AgxO7–δ (x = 0, 0.15, 0.30) is measured in the temperature interval 4.2–150 K. A comparative analysis of the peculiarities of the temperature dependence κ(T) is carried out for different concentrations of silver. Dominating mechanisms of heat transport are identified and the corresponding physical parameters are determined for the system YBa2Cu3–x Agx O7–δ.
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