Switching current distributions in ferromagnetic anomalous Josephson junctions

TL;DR

This paper studies the switching current distributions in ferromagnetic anomalous Josephson junctions, revealing how key parameters influence their behavior and enabling parameter estimation through experiments, with implications for quantum computing.

Contribution

It provides a detailed analysis of how spin-orbit coupling and damping affect switching currents, advancing understanding of cryogenic spintronics devices.

Findings

Switching current distributions are strongly affected by spin-orbit coupling and damping.

Parameters can be experimentally inferred from distribution measurements.

Enhanced understanding of noise and magnetization effects in Josephson junctions.

Abstract

We investigate the switching current distributions of ferromagnetic anomalous Josephson junctions subjected to a linearly increasing bias current. Our study uncovers a significant correlation between the position of the switching current distributions and crucial system parameters, such as the strength of the spin-orbit coupling and the Gilbert damping parameter. This indicates that these parameters can be directly determined through experimental measurements. By conducting a comprehensive analysis of the interplay among noise, magnetization, phase dynamics, and the statistical properties of the switching current distribution, we deepen our understanding of these intriguing cryogenic spintronics devices. These findings hold potential for applications in the field of quantum computing architectures and information processing technologies.