# Realization of Ordered Magnetic Skyrmions in Thin Films at Ambient Conditions

## TL;DR

This paper demonstrates the stabilization of magnetic skyrmions in amorphous Fe/Gd thin films at room temperature and zero magnetic field, using dipolar interactions, enabling potential ambient-condition skyrmion devices.

## Contribution

It introduces a method to stabilize hybrid skyrmions in amorphous thin films at ambient conditions without Dzyaloshinskii-Moriya interactions, expanding skyrmion application possibilities.

## Key findings

- Skyrmions stable over wide temperature and field ranges including room temperature.
- Hybrid Bloch- and Néel-type skyrmions stabilized by dipolar interactions.
- Multi-scale imaging confirms local and long-range skyrmion order.

## Abstract

Magnetic skyrmions present interesting physics due to their topological nature and hold significant promise for future information technologies. A key barrier to realizing skyrmion devices has been stabilizing these spin structures under ambient conditions. In this manuscript, we exploit the tunable magnetic properties of amorphous Fe/Gd mulitlayers to realize skyrmion lattices which are stable over a large temperature and magnetic field parameter space, including room temperature and zero magnetic field. These hybrid skyrmions have both Bloch-type and N\'eel-type character and are stabilized by dipolar interactions rather than Dzyaloshinskii-Moriya interactions, which are typically considered required for the generation of skyrmions. Small angle neutron scattering (SANS) was used in combination with soft X-ray microscopy to provide a unique, multi-scale probe of the local and long-range order of these structures. These results identify a pathway to engineer controllable skyrmion phases in thin film geometries which are stable at ambient conditions.