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  • Диэлектрические свойства сегнетоэлектрических кристаллов бетаинфосфита с высокой степенью дейтерирования

Article

Диэлектрические свойства сегнетоэлектрических кристаллов бетаинфосфита с высокой степенью дейтерирования

Физика твердого тела. 2015. Т. 57. № 12. С. 2313-2318.
Свинарев Ф. Б., Балашова Е., Кричевцов Б., Юрко Е., Панкова Г.

The dielectric properties of deuterated betainphosphite crystals with a high degree of
deuterization in the region of antiferrodisorsion at T = Tc1 and ferroelectric at T = Tc2
phase transitions are studied. We present the description of the temperature behavior of the dielectric constant of Bataipora and deuterated Bataipora in the framework of the thermodynamic model Landau given
biquadratic connection between the polar order parameter of the ferroelectric transition and non-polar
parameter antiterroristicheskogo transition. It is shown that with increase in the degree of deuterating
the relationship between the order parameters is reduced. The increase in temperature of the ferroelectric phase
transition at tatarinowii of Bataipora due to the increase of the dielectric constant in
symmetric phase above the temperature of phase transition antiterroristicheskogo