Micro-Raman spectra measurements in the wavenumber region 20-900 cm-1 reveal a complex temperature dependence of the Raman phonon modes on cooling ceramics down to 70 K. An anomalous line narrow-Bi 2 Ti 4 O 11 ing behavior of some phonon modes is observed and is associated with ordered distributions
Raman scattering from CrO42-ions at low temperatures
β Scribed by W.B. Grant; S. Radhakrishna
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 238 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0038-1098
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Pure rotational, as well as vibrational Raman scattering has been obscrvci from stable diatomic molecules in hi&-kmperature flames. Accurate (rotational) flame tempcraturcs may be dctcrmincd from the rotational line intcnsitics, I-or a hydrogen diffusion flame in air, Trot (Nz) = 1880 f 21 K. T,,t(H
The obscrvauon of optrcal signals due LO hght sca~~enng from Hi molecular eons IS reported and dlscussed By focusing Q-sH?tched 1064 nm NC! YAG laser light III H, at 20 bar, optical frequencies have been generated They are assigned partly IO s~~~~ulared Raman scattenng from H; and partly from Hz mol