Dielectric screening and zone-center phonons in Si
- 15 April 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 17 (8) , 3174-3176
- https://doi.org/10.1103/physrevb.17.3174
Abstract
We present a microscopic calculation of the zone-center phonon frequencies of silicon. The electronic contributions to the phonons are fully incorporated into the dynamical matrix via the dielectric matrix . The acoustic sum rule is shown to be satisfied.
Keywords
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