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Proceedings Paper

Frequency shift and vibronic relaxation of Raman modes in barium nitrate molecular ionic crystal
Author(s): Peter G. Zverev; Weiyi Jia; Huimin Liu
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Paper Abstract

In this paper the results on high resolution spontaneous Raman spectroscopy of barium nitrate molecular ionic crystal at temperature from 8 to 600 K are presented. The temperature dependencies of the linewidth broadening and frequency shifts of internal Raman modes are investigated. The proposed mechanisms of vibronic relaxation of internal Raman modes exhibit low degree of phonon-phonon coupling in the medium. The phonon frequency shifts are found to be due to lattice expansion and are discussed in terms of Gruneisen parameter theory.

Paper Details

Date Published: 3 March 1997
PDF: 6 pages
Proc. SPIE 3090, 12th Symposium and School on High-Resolution Molecular Spectroscopy, (3 March 1997); doi: 10.1117/12.267762
Show Author Affiliations
Peter G. Zverev, General Physics Institute (Russia)
Weiyi Jia, Univ. of Puerto Rico (United States)
Huimin Liu, Univ. of Puerto Rico (United States)


Published in SPIE Proceedings Vol. 3090:
12th Symposium and School on High-Resolution Molecular Spectroscopy
Leonid N. Sinitsa; Yurii N. Ponomarev; Valery I. Perevalov, Editor(s)

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