Institute for Microstructural Sciences, National Research Council, Ottawa, Canada.
Phys Rev Lett. 2011 Nov 11;107(20):207403. doi: 10.1103/PhysRevLett.107.207403.
We show theoretically and experimentally the existence of a new quantum-interference effect between the electron-hole interactions and the scattering by a single Mn impurity. The theoretical model, including electron-valence-hole correlations, the short- and long-range exchange interaction of a Mn ion with the heavy hole and with electron and anisotropy of the quantum dot, is compared with photoluminescence spectroscopy of CdTe dots with single magnetic ions. We show how the design of the electronic levels of a quantum dot enables the design of an exciton, control of the quantum interference, and hence engineering of light-Mn interaction.
我们从理论和实验上证明了电子-空穴相互作用和单个 Mn 杂质散射之间存在一种新的量子干涉效应。该理论模型包括电子-价-空穴相关、Mn 离子与重空穴以及电子的短程和长程交换相互作用以及量子点的各向异性，与具有单个磁性离子的 CdTe 点的光致发光光谱进行了比较。我们展示了如何通过设计量子点的电子能级来设计激子、控制量子干涉，从而实现光-Mn 相互作用的工程化。
