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Pramana

, Volume 3, Issue 3, pp 171–175 | Cite as

Frequency distribution function and critical points for phonons in graphite

  • R Ramani
  • K K Mani
Solids

Abstract

A molecular force field for the study of the dynamics of graphite has been reported earlier (Mani and Ramani 1974). In the present paper we present calculations of the single phonon density of states and the lattice specific heat. Most of the peaks in the frequency distribution function have been identified and classified using symmetry-required critical points. The validity of the force field used has also been discussed.

Keywords

Phonons in graphite critical points frequency distribution function specific heat 

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References

  1. Ahmadieh A A and Rafizadeh H A 1973Phys. Rev. B7 4527ADSGoogle Scholar
  2. DeSorbo W 1953J. Chem. Phys. 21 1660CrossRefADSGoogle Scholar
  3. DeSorbo W and Nichols G E 1958J. Phys. Chem. Solids 6 352CrossRefGoogle Scholar
  4. Egelstaff P A and Cocking S J 1960Proc. Symp. Inelastic Scattering of Neutrons in Solids and Liquids, IAEA.Google Scholar
  5. Gilat G and Raubenheimer L J 1966Phys. Rev. 144 390CrossRefADSGoogle Scholar
  6. Haywood B C and Thorson I M 1962Proc. Symp. Inelastic Scattering of Neutrons in Solids and Liquids, IAEA.Google Scholar
  7. Mani K K and Ramani R 1974Phys. Status Solidi (b) 62 659CrossRefGoogle Scholar
  8. Nicklow R, Wakabayashi N and Smith H G 1972Phys. Rev. B5 4951ADSGoogle Scholar
  9. Phillips J C 1956Phys. Rev. 104 1263CrossRefADSMathSciNetGoogle Scholar
  10. Raubenheimer L J and Gilat G 1967Phys. Rev. 157 586CrossRefADSGoogle Scholar
  11. Slater J C 1965Quantum theory of molecules and solids, Vol. 2 (McGraw-Hill, New York)MATHGoogle Scholar
  12. Van Hove L 1953Phys. Rev. 89 1189MATHCrossRefADSGoogle Scholar

Copyright information

© Indian Academy of Sciences 1974

Authors and Affiliations

  • R Ramani
    • 1
  • K K Mani
    • 1
  1. 1.Department of PhysicsIndian Institute of TechnologyBombay

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