Ferromagnetic-superconducting hybrid films and their possible applications: A direct study in a model combinatorial film

TL;DR

This study fabricates and analyzes combinatorial films with superconducting and ferromagnetic components, demonstrating that ferromagnetic nanoparticles can modulate superconductivity, which could lead to practical applications.

Contribution

It provides direct experimental evidence that ferromagnetic nanoparticles influence superconductivity in hybrid films, enabling controlled modulation of the superconducting order parameter.

Findings

Superconductivity enhancement observed only on hybrid sites.

Magnetic memory effects detected in hybrid films.

FNs effectively modulate the superconducting order parameter.

Abstract

Model combinatorial films (CFs) which host a pure superconductor adjacent to a ferromagneticsuperconducting hybrid film (HF) are manufactured for the study of the influence of ferromagnetic nanoparticles (FNs) on the nucleation of superconductivity. Careful resistance measurements were performed simultaneously on two different sites of the CFs. Enhancement of superconductivity and magnetic memory effects were observed only on the hybrid site of the CFs but were absent on their purely superconducting part. Our results give direct proof that the FNs modulate the superconducting order parameter in an efficient and controlled way giving us the possibility of miscellaneous practical applications.