HIGH TEMPERATURE MATERIALS AND PROCESSES, cilt.29, ss.89-101, 2010 (SCI-Expanded)
A linear variation of the specific heat C-p with the frequency shifts 1/omega(partial derivative omega/partial derivative T)(p) is established for the Raman modes I-V at various temperatures (P=0) close to I-II phase transition in s-triazine (T-c=198 K).