Proximity Effect Transfer from NbTi into a Semiconductor Heterostructure via Epitaxial Aluminum

A. C. C. Drachmann, H. J. Suominen, M. Kjaergaard +4

We demonstrate the transfer of the superconducting properties of NbTi---a large-gap high-critical-field superconductor---into an InAs heterostructure via a thin intermediate layer…