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TEMPERATURE DEPENDENCE OF THE BRILLOUIN SPECTRA IN Sn<sub>2</sub>P<sub>2</sub>S(Se)<sub>6</sub> FERROELECTRIC CRYSTALS

A temperature dependence of hypersound velocities at transition from a paraelectric phase to ferroelectric phase in Sn<sub>2</sub>P<sub>2</sub>S<sub>6</sub> crystals was investigated by Brillouin scattering spectroscopy. Based on these data, full set of elastic constants was determined. Similar meas...

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Principais autores: R.M.Yevych, S.I.Perechinskii, A.A.Grabar, Yu.M.Vysochanskii, V.Yu.Slivka
פורמט: Artigo
שפה:Inglês
יצא לאור: Yukhnovskii Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine 2003-01-01
סדרה:Condensed Matter Physics
נושאים:
Brillouin scattering
soft mode
ferroelectrics
Lifshitz point
גישה מקוונת:http://dx.doi.org/10.5488/CMP.6.2.315
תגים: הוספת תג
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