Phonons instudied using polarized far-infrared and Raman-scattering spectroscopies
- 1 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 52 (6), 4185-4190
- https://doi.org/10.1103/physrevb.52.4185
Abstract
Optical phonons in were studied using polarized far-infrared and Raman-scattering spectroscopies. The frequencies of the infrared-active modes are determined using an oscillator-fitting procedure of reflectivity data. All infrared and Raman active modes, predicted by factor-group analysis, were observed. The assignment of the observed phonons is given according to Cartesian symmetry coordinates as well as preliminary lattice dynamical calculations on the basis of a shell model.
Keywords
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