Single-exciton spectroscopy of semimagnetic quantum dots -: art. no. 045301

被引：87
作者：
Fernández-Rossier, J [1 ]
机构：
[1] Univ Alicante, Dept Fis Aplicada, Inst Mat Alicante, San Vicente Del Raspeig 03690, Spain
来源：
PHYSICAL REVIEW B | 2006年 / 73卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.73.045301
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A photoexcited II-VI semiconductor quantum dots doped with a few Mn spins is considered. The effects of spin-exciton interactions and the resulting multispin correlations on the photoluminescence are calculated by numerical diagonalization of the Hamiltonian, including exchange interaction between electrons, holes, and Mn spins, as well as spin-orbit interaction. The results provide a unified description of recent experiments on the photoluminesnce of dots with one and many Mn atoms as well as optically induced ferromagnetism in semimagnetic quantum dots.
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