Signatures of Gate-Driven Out-of-Equilibrium Superconductivity in Ta/InAs Nanowires.

ABSTRACT: Understanding the microscopic origin of the gate-controlled supercurrent (GCS) in superconducting nanobridges is crucial for engineering superconducting switches suitable for a variety of electronic applications. The origin of GCS is controversial, and various mechanisms have been proposed to explain it. In this work, we have investigated the GCS in a Ta layer deposited on the surface of InAs nanowires. Comparison between switching current distributions at opposite gate polarities and between the gate dependence of two opposite side gates with different nanowire-gate spacings shows that the GCS is determined by the power dissipated by the gate leakage. We also found a substantial difference between the influence of the gate and elevated bath temperature on the magnetic field dependence of

SUBMITTER: Elalaily T 

PROVIDER: S-EPMC10062030 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature