## Abstract Raman phonon spectroscopy in the 10β150 cm^β1^ shift range was used to study the phase transition in an __o__βaminobenzoic acid crystal (II). At 77 K, twelve distinct phonon modes are observed whereas at 300 K the spectrum shows ten phonon bands. The temperature dependence of the phonon
Raman spectroscopic study of oxidation and phase transition in W18O49 nanowires
β Scribed by D. Y. Lu; J. Chen; J. Zhou; S. Z. Deng; N. S. Xu; J. B. Xu
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 401 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.1620
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π SIMILAR VOLUMES
## 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
The gypsum-bassanite-anhydrite phase transition sequence was followed up to 550 K at ambient pressure in a naturally occurring gypsum using Raman spectroscopy. The spectral variations of the internal (CaSO 4 AE 2H 2 O) modes of sulphate tetrahedra and were used to probe the structural phase transiti