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[1442] Artykuł: The phase transitions in ferroelectric crystals of A2 MX4 and AMX3 typeCzasopismo: Ferroelectrics Tom: 273, Zeszyt: 1, Strony: 2521-2526ISSN: 0015-0193 Opublikowano: Maj 2002 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Pozostałe publikacje (niepunktowane) Punkty MNiSW: 0 Pełny tekst DOI Keywords: Incommensurate Phase  Optical Spectroscopy  A 2 MX 4 And Amx 3 Crystals  Absorption Spectra  |
Investigations of characteristics the ferroelectric crystals of A 2 MX 4 and AMX 3 type with incommensurate phases are very interesting both from a scientific and practical point of view. Some aspects of behaviour phase transitions of these crystals are discussed. Special attention is paid to the temperature dependence of series of different type phase transitions. Analysis of the literature data and results of our research let us to consider potential possibilities of practical applications of these materials for optoelectronic devices. Observed temperature hysteresis of birefringence and absorption coefficient in incommensurate phases are especially important for application as optical memories.