Phase P, T, X - diagram of ferroelectric crystals (Pb<sub>y</sub>Sn<sub>1-y</sub>)<sub>2</sub>P<sub>2</sub> (Se<sub>x</sub>S<sub>1-x</sub>)<sub>6</sub>

Authors

  • Е. И. Герзанич Uzhgorod National University, Ukraine
  • А. Г. Сливка Uzhgorod National University, Ukraine
  • П. П. Гуранич Uzhgorod National University, Ukraine
  • В. С. Шуста Uzhgorod National University, Ukraine
  • В. А. Бобела Uzhgorod National University, Ukraine

DOI:

https://doi.org/10.24144/2415-8038.1997.1.58-61

Abstract

The р,Т,х diagram of (PbySn1-y)2P2(SexS1-x)6 ferroelectrics crystals is investigated. An incommensurate phase region existence and Lifshitz points line in the p,T,x - space are established. The Lifshitz point behaviour and character of phase transition in (PbySn1-y)2P2(SexS1-x)6 crystals with cation and anion substitution are discussed.

References

Оптические свойства кристаллов 8п2Р2$6* /М.И.Гурзан, А.И.Бутурлакин, В.С.Герасименко и др./ФТТ. 1977. 19, N10. С.30683070.

Концентрационные зависимости температур и характера фазовых переходов в (РЬу8п1_ у)2Р2$6 и (РЬу8п1-у)2Р2$еб. /Ю.М.Высочанский, М.И.Гурзан, М.М.Майор и др. /ФТТ. 1985. Т.276, N27. С.858863.

Фазовая р,Т,х~ диаграмма сегнетоэлектрических кристаллов (РЬу8п{.у)2Р28еб с несоразмерной фазой /П.П.Гуранич, Н.И.Герзанич, В.С.Шуста, А.Г.Сливка. /ФТТ. 1988. Т.30, N4. С.11891191.

Расщепление фазового перехода в сегнетоэлектрических твердых растворах /А.В.Гомоннай, А.А.Грабар, Ю.М.Высочанский и др./ФТТ. 1981. Т.23, N12. С.36023606.

Фазовая р,Т,х диаграмма сегнетоэлектрических твердых растворов 8п2Р2(Зех81.х)б- /А.Г.Сливка, Н.И.Герзанич, Ю.И.Тягур, И.И.Яцкович./УФЖ. 1986. Т731 ,N9. С.13721374.

Особенности структуры и фазовые переходы в кристаллах 8п(РЬ)2Р2Б(8е)б. /Ю.В.Ворошылов, Ю.М.Высочанский, А.А.Грабар и др./ УФЖ. Т.35, N1. С.7175.

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Published

1997-12-31

Issue

Vol. 1 (1997)

Section

Статті

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Copyright (c) 1997 Scientific Herald of Uzhhorod University.Series Physics

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