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Article Dans Une Revue Journal of Physics: Condensed Matter Année : 2009

Derivation of the heat capacity anomaly at a first-order transition by using a semi-adiabatic relaxation technique

Résumé

This paper deals with the problem of determining the heat capacity anomaly associated with a first-order transition when using relaxation calorimetry. A method of data recording and analysis is proposed, which is shown to be well suited to investigate such a feature, including its hysteretical character. This technique is applied to spinel vanadates, allowing us to shed light on a recent controversy about the double-transition which takes place in these oxides.
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Dates et versions

hal-00686005 , version 1 (06-04-2012)

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Vincent Hardy, Yohann Bréard, Christine Martin. Derivation of the heat capacity anomaly at a first-order transition by using a semi-adiabatic relaxation technique. Journal of Physics: Condensed Matter, 2009, 21 (7), pp.075403. ⟨10.1088/0953-8984/21/7/075403⟩. ⟨hal-00686005⟩
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