Isomorphic phase transitions and overcritical behavior of ferroelectric crystalsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Heat capacity and dielectric permittivity data for (CH3NH3)(5)Bi(2)Hal(11) (Hal = Cl, Br) and rare-earth molybdate crystals reveal additional anomalies associated with the presence of a line of isomorphic phase transitions in the phase diagram. This line results from the strong nonlinearity of the equation of state of these ferroelectric crystals, as demonstrated by the sixth- and higher order expansions of the thermodynamic potential.