Short-range versus long-range electron-hole exchange interactions in semiconductor quantum dots
نویسندگان
چکیده
Using a many-body approach based on atomistic pseudopotential wave functions we show that the electronhole 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. @S0163-1829~98!51144-7#
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تاریخ انتشار 1998