Phase transition in Cs₃Bi₂I₉ ferroelastic: investigation by Raman scattering technique

• Published in: Functional Materials
• Date: 2005
• Main Authors: Motsnyi, F.V., Vuychik, M.V., Smolanka, O.M., Peresh, E.Yu.
• Format: Article
• Language: English
• Published: НТК «Інститут монокристалів» НАН України 2005
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/137644
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Phase transition in Cs₃Bi₂I₉ ferroelastic: investigation by Raman scattering technique / F.V.Motsnyi, M.V.Vuychik, O.M.Smolanka, E.Yu.Peresh // Functional Materials. — 2005. — Т. 12, № 3. — С. 491-496. — Бібліогр.: 20 назв. — англ.

Raman scattering in unpolarized light has been studied for the first time for Cs₃Bi₂I₉ layered ferroelastic at temperatures from 5 to 300 К in the heating mode. Neither soft mode nor frequency softening was observed. For the low-frequency lines 37.0, 45.0, 61.4, 68.3 and 97.4 cm⁻¹, th...