Temperature Dependence of the Raman Frequency of an Internal Mode for SiO₂-Moganite Close to the α-β Transition

Table 3

Values of the isobaric mode Grüneisen parameter 𝛾_𝑝, extrapolated value 𝜈₁ at around 𝑇=303 K and background frequency 𝜈₀ for the vibrational frequency indicated in the α-β phases of moganite.

Vibrational frequency	𝛾𝑝	𝜈1 (cm^−1)	𝜈0 (cm^−1)
501 cm^−1	0.75	500.1	0.72