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DC Field | Value | Language |
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dc.contributor.author | Rushchanskii, K. Z. | - |
dc.contributor.author | Bilanych, R. M. | - |
dc.contributor.author | Molnar, Alexander | - |
dc.contributor.author | Yevych, R. M. | - |
dc.contributor.author | Kohutych, Anton | - |
dc.contributor.author | Perechinskii, S. I. | - |
dc.contributor.author | Samulionis, V. | - |
dc.contributor.author | Banys, J. | - |
dc.contributor.author | Vysochanskii, Yulian | - |
dc.date.accessioned | 2024-03-27T12:34:53Z | - |
dc.date.available | 2024-03-27T12:34:53Z | - |
dc.date.issued | 2016-02 | - |
dc.identifier.citation | Ferroelectricity in (PbySn1−y)2P2S6 mixed crystals and random field BEG model / K. Z. Rushchanskii, R. M. Bilanych, A. A. Molnar, R. M. Yevych, A. A. Kohutych, S. I. Perechinskii, V. Samulionis, J. Banys, and Y. M. Vysochanskii // Physica Status Solidi B253, - 2016. - No.2, - pp.384–391/ DOI 10.1002/pssb.201552138 | uk |
dc.identifier.other | DOI 10.1002/pssb.201552138 | - |
dc.identifier.uri | https://dspace.uzhnu.edu.ua/jspui/handle/lib/60468 | - |
dc.description | In Sn2P2S6 ferroelectric under compression, the second-order phase transition line is observed down to the tricritical point as the transition temperature decreases to 250 K. A tricriticality at a similar temperature is also revealed in the mixed crystals on S→Se substitution. For the mixed crystals with Sn→Pb substitution, ultrasound, hypersound, and low-frequency dielectric studies also show heterophase features appearing on decrease of the ferroelectric transition temperature below a so-called “waterline temperature” near 250 K. Such behavior agrees with the Blume–Emery–Griffiths (BEG) model appropriate for the ferroelectric system under investigation with a three-well local potential for the order parameter fluctuations. The BEG model modified by the random-field phase diagram in the vicinity of the tricritical point qualitatively explains the influence of the cationic substitution on the (PbySn1−y)2P2S6 ferroelectric properties. | uk |
dc.description.abstract | In Sn2P2S6 ferroelectric under compression, the second-order phase transition line is observed down to the tricritical point as the transition temperature decreases to 250 K. A tricriticality at a similar temperature is also revealed in the mixed crystals on S→Se substitution. For the mixed crystals with Sn→Pb substitution, ultrasound, hypersound, and low-frequency dielectric studies also show heterophase features appearing on decrease of the ferroelectric transition temperature below a so-called “waterline temperature” near 250 K. Such behavior agrees with the Blume–Emery–Griffiths (BEG) model appropriate for the ferroelectric system under investigation with a three-well local potential for the order parameter fluctuations. The BEG model modified by the random-field phase diagram in the vicinity of the tricritical point qualitatively explains the influence of the cationic substitution on the (PbySn1−y)2P2S6 ferroelectric properties. | uk |
dc.language.iso | en | uk |
dc.publisher | Wiley-VCH | uk |
dc.subject | Blume–Emery–Griffiths model | uk |
dc.subject | ferroelectrics | uk |
dc.subject | phase diagrams | uk |
dc.subject | tricritical point | uk |
dc.title | Ferroelectricity in (PbySn1−y)2P2S6 mixed crystals and random field BEG model | uk |
dc.type | Text | uk |
dc.pubType | Стаття | uk |
Appears in Collections: | Наукові публікації кафедри фізики напівпровідників |
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2016_pssb_201552138p.pdf | article | 2.2 MB | Adobe PDF | View/Open |
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