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Thermal conductivity of gold and silver at high pressures
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
1978 (English)In: Journal of Physics and Chemistry of Solids, ISSN 0022-3697, E-ISSN 1879-2553, Vol. 39, no 10, 1133-1137 p.Article in journal (Refereed) Published
Abstract [en]

The thermal diffusivities of gold and silver have been measured under pressure up to 2.5 GPa at room temperature. From the measured data the pressure dependence of the thermal conductivity, λ, has been calculated. The values found for the pressure coefficient λ−1 δλ/δP were 3.9 × 10−2GPa−1 for gold and 4.0 × 10−2 GP silver at atmospheric pressure. The results are compared to theoretical predictions of the pressure dependence and also to previous experimental results for copper and aluminium. For the noble metals, small angle or “vertical” scattering of electrons is shown to have a stronger volume dependence than “horizontal” scattering.

Place, publisher, year, edition, pages
Elsevier B.V. , 1978. Vol. 39, no 10, 1133-1137 p.
Keyword [en]
Thermal diffusivity, thermal conductivity, gold, silver, Au, Ag, high pressure, Lorenz number, resistivity
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-22954DOI: 10.1016/0022-3697(78)90167-1OAI: oai:DiVA.org:umu-22954DiVA: diva2:218743
Available from: 2009-05-20 Created: 2009-05-20 Last updated: 2017-12-13

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