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Alpha - beta transition in quartz
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Date
2011
Author
Lider, Mustafa Cem
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Alpha-Beta transition in quartz is studied using the Raman scattering. The Raman frequencies of some lattice modes are analyzed at various temperatures close to the alpha beta transition in quartz. For this analysis, the experimental data from the literature is used and the soft mode behavior of those Raman phonons is investigated . On the basis of the predictions of some models, the temperature dependencies for the Raman frequencies of the lattice modes which move towards zero (soft mode) and their bandwidths close to the transition temperature Tc are explained for the alpha-beta transition in quartz. In addition, by using the experimental volume data from literature, calculation of the temperature dependence of the Raman frequencies through the Grüneisen parameter have been studied near the phase transition.
Subject Keywords
Raman spectroscopy.
,
Quartz.
URI
http://etd.lib.metu.edu.tr/upload/12613650/index.pdf
https://hdl.handle.net/11511/20942
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Graduate School of Natural and Applied Sciences, Thesis
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M. C. Lider, “Alpha - beta transition in quartz,” M.S. - Master of Science, Middle East Technical University, 2011.
