QF Fellow and Associate seminar: Kevin Nangoi

First-principles studies of tunneling properties of metal-semiconductor interfaces for FinMET qubit devices

Kevin Nangoi is a postdoctoral researcher working with Prof. Chris Van de Walle. He works on first-principles studies of metal-semiconductor interfaces for a new type of qubit device called FinMET (Fin shaped Merged-Element Transmon). In this talk, Kevin will discuss Al/Si(111) and CoSi2/Si(111) interfaces, both of which are of interest for FinMET devices. He will show calculations of Schottky Barrier Heights of these interfaces, and will discuss estimations of the resulting Josephson currents (and the corresponding qubit resonant frequencies) using a tunneling model.