Effects of the phase transition between the high-temperature tetragonal phases of the CsScF 4 crystal were studied by Raman scattering. The appearance of new lines including a soft mode was observed below the phase transition point, in complete accordance with the new crystal symmetry. The behavior
Study of the phase transition of CsD2PO4 by Raman scattering
β Scribed by Magane Aoki; Masaru Kasahara; Itaru Tatsuzaki
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 351 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0377-0486
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## Abstract Although three forms of lithium phosphate are known, a complete structural description of the highest temperature polymorph has not yet been given. In the present work, the phase transitions of lithium phosphate were investigated at high temperatures using Raman microscopy and xβray pow
Ta 2 O 5 ceramics and crystals were prepared and analyzed using Raman spectroscopy in the temperature range 25-873 K. The low-energy phonon bands (n < 100 cm -1 ) of Ta 2 O 5 are assigned to external modes originating from the interaction between different Ta polyhedra and TaO n 5-2n -Ta 6 O 12 6Y c