Pressure dependence of the Raman frequencies for the translational mode in ammonia solid II
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, vol.102, no.3, pp.409-417, 2006 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 102 Issue: 3
- Publication Date: 2006
- Doi Number: 10.1016/j.jqsrt.2006.02.052
- Journal Name: JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.409-417
- Middle East Technical University Affiliated: Yes
Abstract
We study here the translational mode of the ammonia solid II near the melting point by calculating its Raman frequencies as a function of pressure for the fixed temperatures of 230.4, 263.4 and 297.5 K. We perform this calculation of the Raman frequencies using the volume data by means of our Gruneisen relation. The Raman frequency shifts as the volume changes with the pressure, exhibit an anomalous behaviour near the melting point in the ammonia solid II.