Laser-Induced Topological Toggle Switching at Room Temperature in the van der Waals Ferromagnet Fe3GaTe2

TL;DR

This paper demonstrates room-temperature laser-induced switching between topological spin textures in Fe3GaTe2, a van der Waals ferromagnet, enabling potential non-volatile memory applications.

Contribution

It introduces a novel method for laser-controlled topological spin texture switching at room temperature in a vdW ferromagnet.

Findings

Laser pulses induce topological texture switching in Fe3GaTe2.

Switching between skyrmion/bubble and labyrinth states achieved.

Potential for room-temperature laser-controlled memory devices.

Abstract

We demonstrate room-temperature nucleation and manipulation of topological spin textures in the van der Waals (vdW) ferromagnet, Fe3GaTe2, through laser pulse excitation. By leveraging laser-induced heating and subsequent cooling, we access the skyrmion/bubble state at low fields and achieve toggle switching between two topological spin textures - skyrmion/bubble and labyrinth. Micromagnetic simulations reveal that this switching behaviour arises from laser-induced heating and cooling. Our findings highlight the potential of vdW ferromagnets for room temperature laser-controlled non-volatile memory storage applications.