Short-range versus long-range electron-hole exchange interactions in semiconductor quantum dots

Authors
Franceschetti, A Wang, LW Fu, H Zunger, A
Citation
A. Franceschetti et al., Short-range versus long-range electron-hole exchange interactions in semiconductor quantum dots, PHYS REV B, 58(20), 1998, pp. R13367-R13370
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
58
Issue
20
Year of publication
1998
Pages
R13367 - R13370
Database
ISI
SICI code
0163-1829(19981115)58:20<R13367:SVLEEI>2.0.ZU;2-N
Abstract
Using a many-body approach based on atomistic pseudopotential wave function s we show that the electron-hole exchange interaction in semiconductor quan tum dots is characterized by a large, previously neglected long-range compo nent, originating from monopolar interactions of the transition density bet ween different unit cells. The calculated electron-hole exchange splitting of CdSe and InP nanocrystals is in good agreement with recent experimental measurements. [S0163-1829(98)51144-7].