Phase transition in dilute KTN crystal investigated by Raman scattering measurements
β Scribed by E. Bouziane; M. D. Fontana; M. Ayadi
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 160 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.1374
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π SIMILAR VOLUMES
Raman spectra of were recorded in the temperature range 5-300 K. A continuous phase tran-(CH 3 NH 3 ) 2 SnCl 6 sition occurs at K. The fact that all the E modes of the ion and the ion remain T c = 155 CH 3 NH 3 ' SnCl 6 2degenerate in the low-temperature phase indicate that still has a trigonal stru
The phase transition in the octafluoronaphthalene crystal is investkated by Raman spectroscopy. Major changes take place in the phonon region while the intramolecular vlkations show only mild effects. The results obtained here are not consistent with the previously reported mechanism of the phase tr