Superconductor-ferromagnet hybrids for non-reciprocal electronics and detectors

TL;DR

This paper reviews superconductor-ferromagnet hybrid thin films for creating non-reciprocal electronic components and self-biased electromagnetic detectors, discussing theory, materials, fabrication, noise analysis, and multiplexing approaches.

Contribution

It provides a comprehensive overview of the design, fabrication, and analysis of superconductor-ferromagnet hybrid devices for advanced electronic and detection applications.

Findings

Successful fabrication of Al/EuS/Cu and EuS/Al/Co detectors

Detailed noise analysis of hybrid detectors

Proposed multiplexing strategies for self-biased detectors

Abstract

We review the use of hybrid thin films composed of superconductors and ferromagnets for creating non-reciprocal electronic components and self-biased detectors of electromagnetic radiation. We begin by introducing the theory behind these effects, as well as discussing various potential materials that can be used in the fabrication of these components. We then proceed with a detailed discussion on the fabrication and characterization of Al/EuS/Cu and EuS/Al/Co-based detectors, along with their noise analysis. Additionally, we suggest some approaches for multiplexing such self-biased detectors.