Relating Andreev Bound States and Supercurrents in Hybrid Josephson Junctions

Nichele, Fabrizio; Portolés, Elías; Fornieri, Antonio; Whiticar, Alexander; C. C. Drachmann, A.; Gronin, Sergei; Wang, Tong; C. Gardner, Geoffrey; Thomas, Candice; T. Hatke, A.; J. Manfra, Michael; M. Marcus, C.

doi:10.1103/physrevlett.124.226801

Public

Relating Andreev Bound States and Supercurrents in Hybrid Josephson Junctions

Published in Physical Review Letters • Jun 4, 2020

Authors:

Fabrizio Nichele

Elías Portolés

Antonio Fornieri

Abstract

We demonstrate concomitant measurement of phase-dependent critical current and Andreev bound state spectrum in a highly transmissive InAs Josephson junction embedded in a dc superconducting quantum interference device (SQUID). Tunneling spectroscopy reveals Andreev bound states with near unity trans...

Subject

Bound state

Andreev reflection

Supercurrent

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