PHASE p,T-DIAGRAM OF CuIn<sub>1+δ</sub>P<sub>2</sub>S<sub>6</sub> CRYSTALS
DOI:
https://doi.org/10.24144/2415-8038.2014.36.58-61Keywords:
Ferrielectric, Hydrostatic pressure, Phase transitions, Phase diagramAbstract
The results of dielectric studies of ferroelectric CuIn1+δP2S6 crystal are presented. The results were measured in the temperature range 293-450 К at a frequency of 1 MHz and under hydrostatic pressure up to р=300МПа. The p,T phase diagram was built and its peculiarities were defined. It was established that the deviation of the phase diagram of the linear law may be related with influence of free charge carriers at the phase transition temperature.
References
Simon A., Ravez J., Maisonneuve V., Payen C., and Cajipe V.B. ParaelectricFerroelectric Transition in the Lamellar Thiophosphate CuInP2S6 // Chem. Mater. - 1994. - 6. - Р. 1575-1580.
Maisonneuve V., Evain M., Payen C., Cajipe V.B., Molinie P. Room-temperature crystal structure of the layered phase CuInP2S6 // Journal of Alloys and Compounds. - 1995. - 218. - Р. 157-164.
Cajipe V.B., Ravez J., Maisonneuve V., Simon A., Payen C., Fischer E. Copper ordering in lamellar CuMP2S6 (M= Cr, In): Transition to an antiferroelectric or ferroelectric phase // Ferroelectrics. - 1996, Vol. 185. - Р. 135-138.
Maisonneuve V., Cajipe V.B., Simon A., Von Der Muhll R. and Ravez J. Ferrielectric ordering in lamellar CuInP2S6 // Physical Review B. - 1997. - Vol. 56, No. 17. - Р. 10860.
Andrius Dziaugys, Juras Banys and Yulian Vysochanskii. Broadband dielectric investigations of indium rich CuInP2S6 layered crystals //Z. Kristallogr. - 2011. - Vol. 226, №. 2. - Р. 171-176.
A.Dziaugys, J.Banys, V. Samulionis and Yu. Vysochanskii. Investigation of CuInP2S6 family layered crystals for ultrasonic transducers // Applications of Ferroelectrics. ISAF 2009. 18th IEEE International Symposium. - 23-27 aug. - 2009. - Р. 1-5.
HallersJ.J., Caspers W.T. On the influence of conduction electrons on the ferroelectric Curie temperature // Phys.St.Sol. - 1969. - V.36. №2. - P. 587-592.
Фридкин В.М. Фотосегнетоэлектрики. М.: Наука, 1979. – 464 с.
Optical and dielectric properties of CuInP2S6 layered crystals at high hydrostatic pressure / P.P. Guranich, A.G. Slivka, V.S. Shusta, O.O. Gomonnai, I.P. Prits. Journal of Physics: Conference Series 121, 2008. - P. 1-4. 022015
Стасюк І.B., Левицький Р.Р., Моїна А.П., Сливка О.Г., Величко О.В. Польові та деформаційні ефекти у складних сегнетоактивних сполуках. Ужгород: Гражда, 2009. – 403 с.
Disodering effect on optical absorption processes in CuInP2S6 layered ferrielectrics / Studenyk I.P., Mitrovcij V.V., Kovacs Gy.S. et.all. // Phys.stat.sol.(b). - 2003. - 236, №3. - P. 678-86.
Downloads
Published
Issue
Section
License
Copyright (c) 2014 Scientific Herald of Uzhhorod University.Series Physics
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish with this journal agree to the following terms:- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
