强磁场中二维空穴气近自由态与强定域辐射态之间的回旋共振激子转移
Cyclotron-resonant exciton transfer between the nearly free and strongly localized radiative states of a two-dimensional hole gas in a high magnetic field
摘要：
在p型掺杂GaAs量子阱的磁光致发光谱中，观察到了几乎自由的正三电子发射线和束缚在界面受主上的激子的回旋复制发射线的交叉。局域态的识别依赖于反交叉模式的精确映射。潜在的耦合是由激子转移结合共振回旋激发的额外的孔。由此产生的磁可调相干态的发射光谱探测量子阱中的弱局域化。
英文摘要：
Avoided crossing of the emission lines of a nearly free positive trion and a cyclotron replica of an exciton bound to an interface acceptor has been observed in the magneto-photoluminescence spectra of p-doped GaAs quantum wells. Identification of the localized state depended on the precise mapping of the anti-crossing pattern. The underlying coupling is caused by an exciton transfer combined with a resonant cyclotron excitation of an additional hole. The emission spectrum of the resulting magnetically tunable coherent state probes weak localization in the quantum well.
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