Theoretical High Pressure Study of Phonon Density of State and Debye Temperature of Solid C: Grüneisen Approximation Approach
International Journal of Thermodynamics, ISSN: 1301-9724, Vol: 25, Issue: 1, Page: 10-15
2022
- 5Citations
- 2Captures
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Article Description
A nanomaterial equation of state has been combined with Grüneisen approximation in present work to investigate the influence of high pressure on phonon density of state function of C through evaluating variations of lattice vibration frequencies and variation of mode density. Furthermore, the effect of high pressure on Debye temperature has been determined by using a formula of volume dependence of Debye temperature. Volume compression ratio in C has been computed, using a nanomaterial equation of state. Expressions of pressure dependence of phonon density of state and Debye temperature have been combined with volume compression ratio value. The evaluated result of volume compression ratio and phonon density of state have been compared with the experimental observations and good agreement can be seen.
Bibliographic Details
International Centre for Applied Thermodynamics (ICAT)
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