Phenomenological Model of a Sequence of Phase Transitions in (NR4)2MeX4 Crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 18 марта 2016 г.
Аннотация:A phenomenological model of a sequence of phase transitions in [N(C2H5)4]2CuCl4 crystals has been proposed. The model is constructed by methods of singularities of differentiable maps (the catastrophe theory). In this model, low temperatures anomalies of thermal properties (entropy and heat capacity) are interpreted as isomorphic phase transitions or as a supercritical behavior on a thermodynamic path in the phase diagram near liquid–vapor end points.