Abstract
The resonant frequency shifts of vibrational modes are related to the elastic constants at various temperatures for the α-β transition in quartz (Tc = 573.0 °C for α-quartz and 574.3 °C for β-quartz). This correlation is constructed on the basis of the spectroscopic modifications of the Pippard relations near the α-β transition in quartz by using the observed data from the literature.Our results indicate that the elastic properties can be described from the spectroscopic parameters (frequency shifts) as we have studied here for the α-β transition in quartz. Using those relations, elastic constants can also be obtained from the frequency shifts near the phase transitions of various crystalline systems.
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