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|Type:||Artigo de periódico|
|Title:||Effects of electron-electron interactions on excitonic absorption in charged self-assembled quantum dots|
|Abstract:||We investigate theoretically the effects of electron-electron interactions on excitonic absorption in charged, lens-shaped, self-assembled quantum dots (SAD). The electronic shells of SAD are filled with N electrons according to generalized Hund's rules. In absorption, an exciton is added to the electronic system. The electronic part of the exciton couples in a nontrivial way to resonant electronic configurations of SAD through direct and exchange interaction while the mobile valence hole contributes through the entanglement of many-electron configurations. The two processes result in an excitonic absorption spectrum that reflects the filling of electronic shells. These processes are illustrated by detailed calculations of absorption spectra for few-electron complexes.|
|Editor:||Amer Physical Soc|
|Citation:||Physical Review B. Amer Physical Soc, v. 61, n. 20, n. 13753, n. 13762, 2000.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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