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Proceedings Paper

Angular behavior of E-doublets in Raman spectra of tetragonal gyrotropic crystals
Author(s): S. G. Garasevich; Alexander V. Slobodyanyuk
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Paper Abstract

Angular dependencies of the Raman modes frequency on direciton of phonon wave vector q in tetragonal gyrotropic crystals TeO2, ZnP2, and CdP2 were investigated and compared. We observed two completely different types of angular behavior of E-doublets splitting in depending on relative contributions of spatial dispersion and long-range Coulomb interaction. The explanation of apparent anomalous dependence of E-doublet 122 cm-1 splitting on q in TeO2 is proposed.

Paper Details

Date Published: 11 December 2002
PDF: 7 pages
Proc. SPIE 4938, Selected Papers from the International Conference on Spectroscopy of Molecules and Crystals, (11 December 2002); doi: 10.1117/12.486677
Show Author Affiliations
S. G. Garasevich, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Alexander V. Slobodyanyuk, National Taras Shevchenko Univ. of Kyiv (Ukraine)


Published in SPIE Proceedings Vol. 4938:
Selected Papers from the International Conference on Spectroscopy of Molecules and Crystals
Galina A. Puchkovska; Sergey A. Kostyukevych, Editor(s)

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