Pressure dependence of the Raman frequency shifts related to the thermodynamic quantities in phase II of s-triazine

Date

2011-4

Author

Yurtseven, Hasan Hamit

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The temperature-induced frequency shifts (1/omega)(a,omega/a,T) (p) are calculated from the pressure induced frequency shifts (1/omega)(a,omega/a,P) (T) using the observed frequencies at various pressures for the Raman modes of II and III in phase II (P > P (C) ) of s-triazine. The values of the mode Gruneisen parameters gamma (T) (isobaric) and gamma (T) (isothermal) of those Raman modes studied here, are determined through the Pippard relations in the spectroscopically modified forms for this crystal. The temperature-induced and the pressure-induced frequency shifts are then used to predict the pressure dependence of the isothermal compressibility, thermal expansion and the specific heat in phase II (P > P (C) ) of s-triazine.

Subject Keywords

Raman modes, Phase II, S-triazine

URI

https://hdl.handle.net/11511/28135

Journal

Indian Journal of Physics

DOI

https://doi.org/10.1007/s12648-011-0064-0

Collections

Department of Physics, Article

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Citation Formats

H. H. Yurtseven, “Pressure dependence of the Raman frequency shifts related to the thermodynamic quantities in phase II of s-triazine,” Indian Journal of Physics, pp. 615–628, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/28135.