# Electrical signature of individual magnetic skyrmions in multilayered systems

## TL;DR

This paper demonstrates room-temperature electrical detection of sub-100 nm magnetic skyrmions in multilayered thin films using combined Magnetic Force Microscopy and Hall resistivity measurements, highlighting their potential for spintronic applications.

## Contribution

It presents the first room-temperature electrical detection of individual skyrmions in multilayered systems, advancing skyrmion-based device research.

## Key findings

- Electrical detection of sub-100 nm skyrmions at room temperature.
- Hall signal dominated by anomalous Hall effect for single skyrmions.
- Combined MFM and Hall measurements enable skyrmion characterization.

## Abstract

Magnetic skyrmions are topologically protected whirling spin textures that can be stabilized in magnetic materials in which a chiral interaction is present. Their limited size together with their robustness against the external perturbations promote them as the ultimate magnetic storage bit in a novel generation of memory and logic devices. Despite many examples of the signature of magnetic skyrmions in the electrical signal, only low temperature measurements, mainly in magnetic materials with B20 crystal structure, have demonstrated the skyrmions contribution to the electrical transport properties. Using the combination of Magnetic Force Microscopy (MFM) and Hall resistivity measurements, we demonstrate the electrical detection of sub-100 nm skyrmions in multilayered thin film at room temperature (RT). We furthermore analyse the room temperature Hall signal of a single skyrmion which contribution is mainly dominated by anomalous Hall effect.