Dissociative valence force field potential for silicon
- 15 July 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (2), 1304-1307
- https://doi.org/10.1103/physrevb.34.1304
Abstract
A procedure for obtaining potentials for covalent solids where many-body terms are important is presented. The potential is based on a variation of the chemically intuitive valence force field formalism. We have incorporated, in a systematic manner, the proper energetics for the dissociation of the solid. For silicon, the model accurately predicts the experimental phonon dispersion relations, cohesive energy, room-temperature Debye-Waller factor, and stabilization energy of the {100} symmetric dimer reconstruction.Keywords
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