Ambient temperature thermal conductivity of YBa2Cu3O7-x

A comparative method was used to measure the thermal conductivity λ of a YBa2Cu3O7−x sample over the temperature range 305–360 K. Using one sample, data were obtained at two different x levels. Surprisingly, the smaller x value (higher Tc) produced a lower thermal conductivity. This observation is d...

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Veröffentlicht in:Journal of applied physics 1989-12, Vol.66 (12), p.6181-6184
Hauptverfasser: WILLIAMS, R. K, GRAVES, R. S, KROEGER, D. M, MARSH, G. C, SCARBROUGH, J. O, BRYNESTAD, J
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container_end_page 6184
container_issue 12
container_start_page 6181
container_title Journal of applied physics
container_volume 66
creator WILLIAMS, R. K
GRAVES, R. S
KROEGER, D. M
MARSH, G. C
SCARBROUGH, J. O
BRYNESTAD, J
description A comparative method was used to measure the thermal conductivity λ of a YBa2Cu3O7−x sample over the temperature range 305–360 K. Using one sample, data were obtained at two different x levels. Surprisingly, the smaller x value (higher Tc) produced a lower thermal conductivity. This observation is discussed in terms of scattering of phonons by point defects and electrons.
doi_str_mv 10.1063/1.343554
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subjects Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Nonelectronic thermal conduction and heat-pulse propagation in solids
thermal waves
Physics
Transport properties of condensed matter (nonelectronic)
title Ambient temperature thermal conductivity of YBa2Cu3O7-x
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