Effect of Hydrostatic Pressure on the Low Temperature Phase Transition in Ferroelectrics: (CH3NH3)5Bi2Cl11 and (CH3NH3)5Bi2Br11

• Autorzy: Mróz J.
• Języki publikacji: EN

Abstrakty

EN

Results of hydrostatic pressure on the low temperature ferroelectric-ferroelectric phase transition in (CH3NH3)5Bi2Cl11 at about 170 K and (CH3NH3)5Bi2Br11 at 77 K are presented. The phase transition in both cases revealed a positive pressure coefficient. The pyroelectric coefficients in the vicinity of the low temperature transitions become more and more diffusive as pressure increases.Asimilar molecular mechanism of phase transitions in both methylammonium salts is postulated.

Słowa kluczowe

EN

halogenobismuthates(III); ferroelectrics; phase transition; spontaneous polarization; pyroelectric coefficient; high pressure

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2003
• Tom: Vol. 77 / nr 4
• Strony: 441--445
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Mróz J.

• Institute of Physics, Technical University of Wrocław, Wybrzeże Wyspiańskiego 27, 50 370 Wrocław, Poland

Bibliografia

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