| Autor: |
Rigina, I. V., Zaitsev, A. A., Podgaetskaya, R. I. |
| Zdroj: |
Russian Physics Journal; November 1979, Vol. 22 Issue: 11 p1196-1199, 4p |
| Abstrakt: |
On the basis of the classical theory of crystal-lattice oscillation and the theory of molecular oscillation, the problem of writing equations of motion for crystal-lattice oscillation, using the change in bond length and angles between bonds as the coordinates, is considered. General methods of taking into account translational symmetry in the force-constant and kinematic-coefficient matrices are determined, and the problem of eliminating unwanted coordinates is considered. Oscillations in a plane quadratic lattice are used to illustrate the method. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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