Short-range versus long-range electron-hole exchange interactions in semiconductor quantum dots
- 15 November 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 58 (20) , R13367-R13370
- https://doi.org/10.1103/physrevb.58.r13367
Abstract
Using a many-body approach based on atomistic pseudopotential wave functions we show that the electron-hole exchange interaction in semiconductor quantum dots is characterized by a large, previously neglected long-range component, originating from monopolar interactions of the transition density between different unit cells. The calculated electron-hole exchange splitting of CdSe and InP nanocrystals is in good agreement with recent experimental measurements.Keywords
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