The Infra-Red Spectrum of Diamond
- 1 March 1958
- journal article
- Published by IOP Publishing in Proceedings of the Physical Society
- Vol. 71 (3) , 485-490
- https://doi.org/10.1088/0370-1328/71/3/322
Abstract
The contribution of lattice vibrations to the infra-red spectrum of diamond in the 2 to 6 μ region has been calculated from the vibrational frequency distribution where second nearest neighbour central forces are taken into account. It is assumed that this absorption is associated with two-phonon processes arising from second-order terms in the electric moment. Certain general selection rules are determined. Most of the details of the observed spectrum are reproduced in the calculated spectrum.Keywords
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