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Lattice dynamics and the compression curves of cobalt

✍ Scribed by R. Ramji Rao; A. Ramanand

Book ID
104626305
Publisher
Springer US
Year
1978
Tongue
English
Weight
163 KB
Volume
30
Category
Article
ISSN
0022-2291

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✦ Synopsis

The phonon dispersion relations along symmetry directions in cobalt have been obtained using a nearest neighbor central force model for hcp lattices. The third-order elastic (TOE) constants obtained in this model have been used to determine the changes in the lattice parameters due to high pressure, using Thurston' s extrapolation formula. The variation of volume with pressure has been calculated using Murnaghan' s logarithmic equation. The agreement of the calculated values with the experimental shock wave data up to 1.2 Mbar pressure is remarkably good.

πŸ“œ SIMILAR VOLUMES

Lattice dynamics of cobalt
Lattice dynamics of cobalt
✍ O. N. Singh; S. S. Kushwaha πŸ“‚ Article πŸ“… 1974 πŸ› Springer-Verlag,Italian Physical Society βš– 410 KB
Lattice Dynamics of Crystals of the Calc
Lattice Dynamics of Crystals of the Calcite Structure II. Dispersion Curves and Phonon Densities
✍ M. Plihal πŸ“‚ Article πŸ“… 1973 πŸ› John Wiley and Sons 🌐 English βš– 625 KB

## Abstract Phonon dispersion curves of the external and internal modes of trigonal CaCO~3~ have been calculated for some directions in the Brillouin zone. The one‐phonon density, the two‐phonon density, and the specific heat have also been determined. The results are compared with available experi