Coherent manipulation of complex spin ensembles in semiconductor nanostructures (A01)

半导体纳米结构中复杂自旋系综的相干操纵（A01）

• 批准号: 269898819
• 金额: --
• 依托单位: V.A. Fock Institute of Physics
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/269898819?language=en
• 关键词: Coherent; manipulation; complex; spin; ensembles

Target of the studies will be ensembles of localized spins in quantum dots or wells that are driven periodically by pulsed lasers. In dots we will advance the experimental and theoretical studies of spin mode-locking facilitated through nuclear-induced frequency focusing by addressing structures with less complex nuclear spin system such as GaAs/AlGaAs dot structures or fluorine donor-bound electron spins in ZnSe. Further, we will clarify and control spin-spin interactions between QDs, using also structures without wetting layer. In doped quantum wells, we will continue our investigations of weak localization phenomena in the spin dynamics.

研究的目标将是由脉冲激光周期性驱动的量子点或量子井中的局域自旋的集合。在DOTS中，我们将推进通过核诱导频率聚焦促进自旋锁模的实验和理论研究，通过解决具有不太复杂的核自旋系统的结构，例如在ZnSe中的GaAsAlGaAs点结构或氟施主束缚的电子自旋。此外，我们还将使用没有润湿层的结构来澄清和控制量子点之间的自旋-自旋相互作用。在掺杂量子阱中，我们将继续研究自旋动力学中的弱局域化现象。