Joule spectroscopy of hybrid superconductor-semiconductor nanodevices.

ABSTRACT: Hybrid superconductor-semiconductor devices offer highly tunable platforms, potentially suitable for quantum technology applications, that have been intensively studied in the past decade. Here we establish that measurements of the superconductor-to-normal transition originating from Joule heating provide a powerful spectroscopical tool to characterize such hybrid devices. Concretely, we apply this technique to junctions in full-shell Al-InAs nanowires in the Little-Parks regime and obtain detailed information of each lead independently and in a single measurement, including differences in the superconducting coherence lengths of the leads, inhomogeneous covering of the epitaxial shell, and the inverse superconducting proximity effect; all-in-all constituting a unique fingerprint of each d

SUBMITTER: Ibabe A 

PROVIDER: S-EPMC10199083 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature