Self-organized plane arrays of metallic magnetic elements

TL;DR

This paper investigates the dynamic magnetic properties of self-organized arrays of permalloy nano-dots, demonstrating high-quality fabrication with well-resolved resonance peaks using advanced ferromagnetic resonance techniques.

Contribution

It introduces a self-organized mask fabrication method for creating high-quality nano-dot arrays with consistent magnetic properties.

Findings

Multiple well-resolved resonance peaks observed

High-quality, uniform nano-dot arrays produced

Effective use of broadband ferromagnetic resonance techniques

Abstract

We studied the dynamic magnetic properties of plane periodical arrays of circular permalloy nano-dots fabricated using a self-organized mask formed by polysterene nanospheres on the surface of a Permalloy film. Conventional (microwave cavity) and broadband coplanar-line ferromagnetic resonance setups were used for the measurements. We found several well resolved resonance peaks. This result shows that the self-organized mask fabrication technique is able to produce high-quality samples with small dispersion of geometrical and magnetic parameters.