Anisotropic Thermal Diffusivity and Conductivity of YBCO(123) and YBCO(211) Mixed Crystals. II
- 1 November 1994
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 33 (11R), 6157
- https://doi.org/10.1143/jjap.33.6157
Abstract
The electron and phonon contributions to the thermal conductivity and diffusivity of the YBa2Cu3O7- x (YBCO(123)) matrix phase in the mixed crystal were separated by use of the Kadanoff theory. The phonon mean free path l ph and the phonon relaxation time τ ph were determined. The phonon thermal conductivity and diffusivity were analyzed based on the Tewordt and Wölkhausen theory to estimate the electron-phonon coupling parameter λ and the strength of the various phonon scattering mechanisms.Keywords
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