Vibrational multiplet structure of internal optic modes in crystals
- 15 December 1974
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 61 (12) , 5344-5347
- https://doi.org/10.1063/1.1681886
Abstract
Vibrational multiplet structure in Brillouin zone center internal optic modes can be classed as originating from site group effects, multiple site effects, and correlation field or factor group effects. In many systems where these may occur simultaneously, the separate contributions of each of these effects can be calculated in terms of a molecular dipole model. An example of site group/factor group splitting in orthorhombic KNO3 is analyzed and discussed.Keywords
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