## Abstract The electron density of both the perturbed and unperturbed crystal can be made up of individual terms described by the basis functions of irreducible representations of the crystal point group. For the perfect FCC lattice, a detailed comparison was made between the density of states, ca
Incompletely symmetric non-bloch electron states in perfect cubic crystals. III. Density of dynamical observables in the FCC lattice
β Scribed by A. Kunert
- Book ID
- 104579346
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 384 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0020-7608
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β¦ Synopsis
Abstract
The operators of dynamical observables of the crystal electron (velocity vector components. reciprocal mass tensor components and their functions) commute with the energy operator; hence, the averages of these observables can be adequately approximated by the eigenfunctions for the energy operator. Calculations of the averages were based on the LCAO eigenfunctions classified according to incompletely symmetric irreducible representations of the point group of the cubic crystal, and a similar classification was made for the averages.
π SIMILAR VOLUMES
## Abstract This paper gives an abbreviated method for the calculation of the density of states of a crystal on the basis of that band theory in which the crystal electron states are represented by the standinglike wave functions classified according to the pointβgroup symmetry species. The crystal