LXXIII. Scattering of phonons and electrons by imperfections in a metal
- 1 August 1956
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 1 (8) , 718-721
- https://doi.org/10.1080/14786435608238146
Abstract
Heat transport in superconducting metals is a complex phenomenon, and many details still await a quantitative explanation. K n, the thermal conductivity in the normal state (restored by a weak magnetic field), is due almost entirely to conduction electrons, unless the metal is very impure. K s, the thermal conductivity in the superconducting state, is more complicated; however, recent experiments (Mendelssohn and Renton 1953, 1955, Laredo 1955) suggest that at low temperatures K s is mainly due to phonons. In comparison with the normal metal the effect of the latter is much enhanced. This is because in a superconductor with falling temperature, the electrons are rapidly losing their entropy and can neither conduct heat nor scatter phonons.Keywords
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