论文标题
使用Inas 2deg中定义的量子点自旋分辨光谱法
Spin-resolved spectroscopy using a quantum dot defined in InAs 2DEG
论文作者
论文摘要
我们实现了一种设备，基于通过超导AL临近的INAS二维电子气体，该气体允许单个量子点水平用作纳米线中状态密度的光谱仪。平行于设备平面的磁场会导致点的水平分裂，从而使自旋分辨光谱法分裂。使用这种方法，我们能够研究允许运输的旋转和电荷极化，该磁场在纳米线中形成，并随着磁场和栅极电压的变化而进化。
We realize a device, based on InAs two-dimensional electron gas proximitized by superconducting Al, which allows a single quantum dot level to be used as a spectrometer of the density of states in a nanowire. Applying a magnetic field parallel to the plane of the device causes the levels of the dot to split, enabling spin resolved spectroscopy. Using this method, we are able to study the spin and charge polarization of the allowed transport through sub-gap states which form in the nanowire and evolve with varying magnetic field and gate voltage.
