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Q: Fachverband Quantenoptik und Photonik
Q 46: Laser Applications: Laser Spectroscopy
Q 46.7: Talk
Wednesday, March 25, 2015, 16:00–16:15, K/HS2
Temperature dependent Raman spectra of CsCdBr3 and CsCdCl3 crystals — •Riza Demirbilek1, Rudolf Feile2, and Ayşegül Çelik Bozdoğan1 — 1Department of Physics, Faculty of Science and Letters, Yildiz Technical University, 34210 Davutpaşa Istanbul, Turkey — 2Institut of Solid State Physics, Technische Universität Darmstadt, Hochschulstraße 8, 64289 Darmstadt, Germany
Abstract
Temperature dependent Raman spectra of the crystals CsCdCl3 and CsCdBr3, grown by Bridgman method, were measured in the temperature range 5K-300K. Comparison of the temperature dependence of the observed Raman-lines of the modes of common sites in both crystals gives the possibility to compare the anharmonicity of the lattice vibration of both materials. The breathing mode of both CsCdCl3 and CsCdBr3 crystals is the strongest and comparable mode in this manner. In this presentation, the results and their analysis will be presented and discussed.