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Theory of anharmonicity in the lattice dynamics of crystals of rigid molecules

✍ Scribed by S.H. Walmsley

Publisher
Elsevier Science
Year
1983
Tongue
English
Weight
493 KB
Volume
96
Category
Article
ISSN
0009-2614

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✦ Synopsis

The use of the rigid-molecule approximation in the theory of lattice dynamics of molecular crystals leads to hiiherorder kinetic energy terms when anharmonic effects are allowed for. The conventional theory of lattice dynamics is extended to take account of these terms.

πŸ“œ SIMILAR VOLUMES

Orientation of rigid linear molecules: A
Orientation of rigid linear molecules: A Hamiltonian for use in lattice dynamics
✍ S.H. Walmsley πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 250 KB

A previous treatment for non-hriear molecules is adapted to the case of linear molecules. The quaterniom of the former case are replaced by direction cosines of the Linex axis The resulting Hamiltonian is developed for application to latticedynamics and other problems involving onentational displace