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Raman scattering in ferroelectric (CH3NH3)3Bi2Br9 single crystals.
Autorzy
Rok wydania
1994
Czasopismo
Numer woluminu
25
Strony
371-375
DOI
10.1002/jrs.1250250514
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The Raman spectra of ferroelectric (CH3NH3)3Bi2Br9 single crystals were studied at temperatures from 80 to 300 K and in the wavenumber range 0–300 cm−1. A tentative assignment of the observed bands is proposed. The phase transitions reported at 188, 140 and 101.5 K influence the Raman spectra and the observed changes are discussed in terms of the possible mechanisms involved. The lowest phase transition at 101.5 K is directly connected with instability of the inorganic sublattice.
Adres publiczny
https://doi.org/10.1002/jrs.1250250514
Strona internetowa wydawcy
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