Specific heat of a supraconducting alloy

Abstract
In a previous note Keeley, Mendelssohn and Moore have shown that the magnetic behaviour of supraconducting alloys differs considerably from that of pure metals. This led to investigations on other properties of supraconducting alloys to discover if this difference was due to a fundamental difference in the nature of supraconductivity in pure metals and in alloys. Experiments have therefore been carried out on the energy content of a supraconducting alloy. Keesom and his collaborators have found a discontinuity in the specific heats of pure metals at the temperature at which they become supraconducting. The magnitude of this discontinuity has been correlated with the steepness of the magnetic threshold curve at the transition point by a simple formula due to Rutgers.

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