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

Abstract : 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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https://hal-normandie-univ.archives-ouvertes.fr/hal-02264088
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Submitted on : Tuesday, August 6, 2019 - 11:33:44 AM
Last modification on : Friday, November 22, 2019 - 12:14:09 PM

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Vincent Hardy, Yohann Bréart, 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, IOP Publishing, 2009, 21 (7), pp.075403. ⟨10.1088/0953-8984/21/7/075403⟩. ⟨hal-02264088⟩

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