The thermodynamics of discontinuous orientational phase transitions in quantum crystals

M. Sprik, A.J. Nijman and N.J. Trappeniers

Physica A: Statistical Mechanics and its Applications, 1979, vol. 98, issue 1, 231-244

Abstract: Generalized Clausius-Clapeyron relations are derived for discontinuous orientational phase transitions in the quantum-mechanical regime. Some qualitative features of the isotope effect on the transition temperature are explained. The quantum correction to the density dependence of the h.c.p.-f.c.c. transition temperature in solid hydrogen, the stability of the partially ordered phase of solid CH4 and the anomalous isotope effect in ammonium bromide are treated in thermodynamic terms.

Date: 1979
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:98:y:1979:i:1:p:231-244

DOI: 10.1016/0378-4371(79)90175-4

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