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Inne
Raman studies of ferroelectric phase transition in [NH2(CH3)]3Sb2Cl9(DMACA).
Autorzy
Rok wydania
1998
Czasopismo
Numer woluminu
18
Strony
203-210
DOI
10.1016/S0924-2031(98)00087-3
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The ferroelectric phase transition at 242 K in single crystals of [(CH3)2NH2]3Sb2Cl9 (DMACA) has been investigated by the Raman spectroscopy over the range 3500–400 cm−1. The temperature dependencies of the wave numbers, damping coefficients and intensities of the bands corresponding to the symmetric, νs, and asymmetric, νas, NC2 stretching vibrations were analysed in detail. The Raman studies confirm that the mechanism of the ferroelectric phase transition of the order–disorder type is governed by changes in dynamical state of the dimethylammonium cations.
Słowa kluczowe
Raman spectroscopy, Phase transition, Halogenoantimonates(III)
Adres publiczny
https://doi.org/10.1016/S0924-2031(98)00087-3
Strona internetowa wydawcy
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