The vibrational optical spectrum of ethylenediamine crystal. Calculation of the one-phonon spectrum of the high-temperature crystal form
β Scribed by R. Righini; S. Califano
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 822 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0301-0104
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π SIMILAR VOLUMES
The phonon sidebands on the cscitons observed in certain molecular cryslals may be repres--nted by a ~e@tcd density of states. 11 is here shown qualjtatively and by reference to typical experiments that this function does not, in general, resemble the true density of state: b,Jt often may be predict
## We propose here a theoretical method using the De Launay model to calculate phonon dispersion curves and density of states y(11) of KCJwith ,r = 2, 3, 6, and 8). With those curves, we evaluate the specific heat C,, the Debye temperature B,, and the h parameter used in ~~c~il1~n.s formula with t