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Calculation of the Raman Linewidths of Lattice Modes Close to the alpha-beta Transition in Quartz

Lider, Mustafa Cem
Yurtseven, Hasan Hamit
The Raman frequencies of the lattice modes (147 cm(-1) and 207 cm(-1)) are analyzed for the alpha-beta transition in quartz according to a power-law formula with the critical exponent by using the experimental data. The temperature dependence of the Raman frequency is associated with the order parameter (polarization P) for this transition in the quartz crystal.