Infrared and Raman responses in ferroelectric perovskite crystals: Apparent inconsistencies

Far-infrared reflectivity and Raman stud

Far-infrared reflectivity and Raman study in the ferroelectric–ferroelastic crystal of tris(dimethylammonium) nonabromodiantimonate

✍ Y. Marqueton; A. Miniewicz; R. Jakubas 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 848 KB

## Abstract A study of far‐infrared (5–400 cm^−1^) polarized reflectivity spectra and preliminary Raman measurements of the ferroelectric crystal of DMABA, [NH~2~(CH~3~)~2~]~3~Sb~2~Br~9~, were made in the temperature range 80–300 K. The paraelectric–ferroelectric phase transition occurring at __T__