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Soft mode behavior in ferroelectrics Sn 2 P 2 S 6 and Sn 2 P 2 Se 6 near phase transitions

✍ Scribed by Grigas, Jonas; Kalesinskas, Vidas; Lapinskas, Saulius; Paprotny, Weodzimierz


Book ID
121200557
Publisher
Taylor and Francis Group
Year
1988
Tongue
English
Weight
189 KB
Volume
80
Category
Article
ISSN
0015-0193

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Measurements of the dielectric properties of Sn 2 P 2 S 2X4 Se 3X6 crystals at submillimeter wavelengths indicate that there are two structural phase transitions of incommensurateΒ±ferroelectric and para-electricΒ±incommensurate in this material at temperatures T C 224 K and at about T i 230 K.