I-V characteristics of short superconducting nanowires with different bias and shunt: a dynamic approach

TL;DR

This paper models the current-voltage behavior of short superconducting nanowires with various circuit configurations using numerical simulations based on time-dependent Ginzburg-Landau equations, including flux effects in SQUIDs.

Contribution

It introduces a dynamic approach to analyze I-V characteristics of nanowires with different biasing and shunt conditions using numerical methods.

Findings

I-V characteristics depend on circuit shunt configurations.

Flux influences the I-V behavior in SQUIDs with nanowire weak links.

Numerical simulations reveal dynamics of superconducting nanowires.

Abstract

We derived the I-V characteristics of short nanowire in the circuit with and without resistive and inductive shunt. For that we used numerical calculations in the framework of time-dependent Ginzburg-Landau equations with different relaxation times for the amplitude and phase dynamics. We also derived dependence of the I-V characteristics on flux in superconducting quantum interference device (SQUID) made of such two weak links.