QDev Seminar: Asbjørn Drachman
Introducing Nb to InAs nanowire with epitaxial Al fullshell.
In this talk I present my work on fabricating a InAs-Al-Nb nanowire devices.
The idea is to increase the critical field in InAs-Al wires, which we know have a hard superconducting gab. If this succeeds, we can build devices, with which we should be able to measure Majorana Fermions, if they exist.
I'll briefly introduce the theory of superconducting proximity effect and then explain the device geometry and my fabrication process. I'll conclude with how far I've gotten and what further work needs to be done.