Low-temperature differential-thermal analysis to measure variations in entropy

Abstract

We describe how we can precisely measure variations in the entropy S of small solid samples below room temperature, as a function the temperature T or the external magnetic field H, respectively. A simple differential-thermal analysis (DTA) technique allows, in principle, for the measurement of variations in S without any instrumental broadening of the data. The method is particularly well suited for the detection of sharp phase transitions in samples of milligram size.

References in corpus (1)

• First order superconducting phase transition in CeCoIn${}_5$

Cited by in corpus (6)

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• Observation of a first-order phase transition deep within the vortex-solid region of YBa2Cu3O7
• Differential-thermal analysis around and below the critical temperature Tc of various low-Tc superconductors: A comparative study