By measuring the current-voltage characteristics and the switching current distributions as a function of temperature, we have investigated the phase dynamics of Al tunnel ferromagnetic Josephson junctions (JJs), designed to fall in the typical range of parameters of state-of-the-art transmons, providing evidence of phase diffusion processes. The comparison with the experimental outcomes on non-magnetic JJs with nominally the same electrodynamical parameters demonstrates that the introduction of ferromagnetic barriers does not cause any sizeable detrimental effect, and supports the notion of including tunnel ferromagnetic JJs in qubit architectures.
@article{arxiv.2406.03615,
title = {Phase dynamics of tunnel Al-based ferromagnetic Josephson junctions},
author = {Halima Giovanna Ahmad and Roberta Satariano and Raffaella Ferraiuolo and Antonio Vettoliere and Carmine Granata and Domenico Montemurro and Giovanni Ausanio and Loredana Parlato and Giovanni Piero Pepe and Francesco Tafuri and Davide Massarotti},
journal= {arXiv preprint arXiv:2406.03615},
year = {2024}
}
Comments
Accepted Manuscript Version. Please cite this article as DOI: 10.1063/5.0211006