Thermal expansion of lead at low temperatures
- 1 July 1958
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 3 (31), 665-674
- https://doi.org/10.1080/14786435808237001
Abstract
Changes of length of a lead rod due to thermal expansion have been measured between 4.2° k and 10° k by a heterodyne-beat method in which the changes modify the capacity of a condenser in a resonant circuit. The variation with temperature of the Gfüneison constant y was deduced; the accuracy was just insufficient to show up the jump in thermal expansion coefficient at the superconducting transition.Keywords
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