This article is cited in 6 papers

Thermal properties

On the correlation between thermal expansion coefficient and heat capacity of argon cryocrystals

V. Yu. Bodryakov

Urals State Pedagogical University, Ekaterinburg

Abstract: A detailed analysis of the correlation between the volumetric thermal expansion coefficient o$(T)$ and heat capacity $C(T)$ of a rare-gas (Ar) cryocrystal has been performed. It has been shown that there is a clear correlation dependence o$(C)$ not only in the low-temperature range, where it is linear and known as the Grüneisen law, but also in a significantly wider temperature range (up to the melting point of argon). The dependence o$(C)$ substantially deviates from the low-temperature linear behavior when the heat capacity reaches the classical Dulong–Petit limit of 3$R$.

Received: 27.03.2014
Accepted: 02.06.2014

 English version: Physics of the Solid State, 2014, 56:11, 2359–2365

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