Phase diagram and dielectric properties of mixed Cs1-x(NH4)(x)H2PO4 crystals

Cs substitution has been studied in the mixed Cs1-x(NH4)(x)H2PO4 crystals system by means of dielectric measurements. The x-T phase diagram was determined: for ammonium concentrations up to 0.1 the system has a monoclinic paraelectric phase with a transition into a ferroelectric phase whose temperature increases with increasing ammonium concentration. For ammonium concentration 0.4 to 1.0 the system shows a tetragonal paraelectric phase and a transition into an antiferroelectric phase. No solid solutions with concentrations between 0.1 and 0.4 could be grown. The system was further studied with the quasi-one-dimensional Ising model and the three-dimensional anisotropic Ising model
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Popis souboru: application/pdf
Jazyk: English
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=od_______307::084100bdc33749ec0a6b6c9d036f2733
https://hdl.handle.net/1822/4359
Rights: OPEN
Přírůstkové číslo: edsair.od.......307..084100bdc33749ec0a6b6c9d036f2733
Autor: Baranov, A. I., Dolbinina, V. V., Lanceros-Méndez, S., Schmidt, V. H.
Přispěvatelé: Universidade do Minho
Jazyk: angličtina
Rok vydání: 2002
Předmět:
Popis: Influence of NH4-->Cs substitution has been studied in the mixed Cs1-x(NH4)(x)H2PO4 crystals system by means of dielectric measurements. The x-T phase diagram was determined: for ammonium concentrations up to 0.1 the system has a monoclinic paraelectric phase with a transition into a ferroelectric phase whose temperature increases with increasing ammonium concentration. For ammonium concentration 0.4 to 1.0 the system shows a tetragonal paraelectric phase and a transition into an antiferroelectric phase. No solid solutions with concentrations between 0.1 and 0.4 could be grown. The system was further studied with the quasi-one-dimensional Ising model and the three-dimensional anisotropic Ising model
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Databáze: OpenAIRE
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