## Abstract De Launay's model of electronβlattice interaction has been applied to the evaluation of the vibration spectrum of twoβbodyβcentred cubic metals viz. tungsten and molybdenum. Following KELLERMANN the reciprocal phase space is divided into 10 Γ 10 Γ 10 cells. However, the secular determin
Vibration spectrum and heat capacities of silver
β Scribed by S. P. Singh
- Publisher
- John Wiley and Sons
- Year
- 1962
- Tongue
- English
- Weight
- 198 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0370-1972
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β¦ Synopsis
Abstract
The vibrational spectrum and the specific heats of silver have been studied by DE LAUNAY's model. Frequencies have been calculated for 1000 points of the Brillouin zone and the specific heats evaluated by the sampling technique. The calculated C~v~ are in good agreement with the experimental values. (ΞβT) curves obtained from LEIGHTON and BHATIA's models are also given for comparison. It is found that DE LAUNAY's model gives the best fit with the experimental curve.
π SIMILAR VOLUMES
## Abstract Normal modes and their dispersion have been obtained for polychloroprene in the trans form using Wilson's G F matrix method as modified by Higg's for an infinite polymeric chain. Urey Bradley force field has been used. Several new assignments, which are missing in earlier work, are repo