Stephen Gill

Engineering Superconductivity in InSb Nanowire Devices

Semiconductor nanowires such as InAs and InSb provide a platform for novel low dimensional quantum devices. Following proposals to realize Majorana zero modes in these materials, evidence for such modes were reported in highly disordered semiconductor-superconductor devices. However, the level of disorder in these devices invited alternative explanations to these observations and has motivated significant material advances in semiconductor-superconductor interfaces in order to realize robust Majorana devices. In this talk, I will discuss our efforts on engineering superconductivity in InSb nanowires directly interfaced with Al. In particular, I will describe our work on maturing the growth of Al on InSb and realizing ballistic superconducting devices.