半导体量子点中的自旋弛豫猝灭
Spin relaxation quenching in semiconductor quantum dots.
作者信息
Paillard M, Marie X, Renucci P, Amand T, Jbeli A, Gérard J M
机构信息
Laboratoire de Physique de la Matière Condensée, INSA-CNRS, Toulouse, France.
出版信息
Phys Rev Lett. 2001 Feb 19;86(8):1634-7. doi: 10.1103/PhysRevLett.86.1634.
PMID:11290211
Abstract
We have studied the spin dynamics in self-organized InAs/GaAs quantum dots by time-resolved photoluminescence performed under strictly resonant excitation. At low temperature, we observe strictly no decay of both the linear and the circular luminescence polarization. This demonstrates that the carrier spins are totally frozen on the exciton lifetime scale.
摘要
我们通过在严格共振激发下进行的时间分辨光致发光研究了自组织InAs/GaAs量子点中的自旋动力学。在低温下，我们观察到线性和圆偏振发光极化均完全没有衰减。这表明载流子自旋在激子寿命尺度上完全被冻结。
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