Screened exchange in semiconductors
- 10 May 1973
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 6 (9) , L181-L185
- https://doi.org/10.1088/0022-3719/6/9/002
Abstract
The exchange contribution to the band gap is calculated in a simple model to illustrate the various processes and approximations involved. It is shown how the exchange contributes a large and approximately constant fraction of the semiconductor band gap. The changes involved in using a dynamic electron-electron interaction are calculated and found to be significant for this model.Keywords
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