Pressure dependence of the Raman frequency shifts related to the thermodynamic quantities in phase II of s-triazine
[ X ]
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Indian Assoc Cultivation Science
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Raman modes, phase II, s-triazine
Kaynak
Indian Journal of Physics
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
85
Sayı
4
