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Raman studies of the ferroelectric phase transitions in (CH3NH3)5Bi2Cl11 (MAPCB): I. The Internal vibrations of the methylammonium cation.
Autorzy
Rok wydania
1992
Czasopismo
Journal of Physics-Condensed Matter
Numer woluminu
4
Strony
2985-2999
DOI
10.1088/0953-8984/4/11/023
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The Raman spectra of (CH3NH3)5Bi2Cl11 in the range of internal frequency modes of the (CH3NH3)+ cation (75-1700, 2700-3500 cm-1) have been recorded in the three phases and at room temperature for the partially deuterated (CD3NH3) compound. The CH3 (or CD3) and NH3+ bands of the spectra have been identified and compared with Raman results available for other methylammonium crystals. The temperature dependences of these internal modes were measured in the range 100-360 K and their temperature…
Adres publiczny
https://doi.org/10.1088/0953-8984/4/11/023
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