# Ultrafast imprinting of topologically protected magnetic textures via pulsed electrons

## TL;DR

This paper demonstrates that ultrafast electron pulses can rapidly generate and control topologically protected magnetic textures like skyrmions, enabling precise spatio-temporal manipulation at low current densities.

## Contribution

It introduces a novel method using pulsed electrons to imprint and steer skyrmions in magnetic materials with Dzyaloshinskii-Moriya interactions.

## Key findings

- Electron pulses can induce skyrmions at low current densities.
- Magnetic textures can be controlled via pulse duration and strength.
- The method enables spatio-temporal control of magnetic excitations.

## Abstract

Short electron pulses are demonstrated to trigger and control magnetic excitations, even at low electron current densities. We show that the tangential magnetic field surrounding a picosecond electron pulse can imprint topologically protected magnetic textures such as skyrmions in a sample with a residual Dzyaloshinskii-Moriya spin-orbital coupling. Characteristics of the created excitations such as the topological charge can be steered via the duration and the strength of the electron pulses. The study points to a possible way for a spatio-temporally controlled generation of skyrmionic excitations.