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

Charlie W. F. Freeman; Woohyun Cho; Paul S. Keatley; PeiYu Cai; Elton J. G. Santos; Robert J. Hicken; H. Yang; Hidekazu Kurebayashi; Murat Cubukcu; Maciej Dabrowski

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

Materials Science 2025-07-21 v2

Authors: Charlie W. F. Freeman , Woohyun Cho , Paul S. Keatley , PeiYu Cai , Elton J. G. Santos , Robert J. Hicken , H. Yang , Hidekazu Kurebayashi , Murat Cubukcu , Maciej Dabrowski

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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.

Keywords

van der Waals ferromagnet Fe3GaTe2 topological spin texture skyrmion laser pulse room temperature

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@article{arxiv.2507.12959,
  title  = {Laser-Induced Topological Toggle Switching at Room Temperature in the van der Waals Ferromagnet Fe3GaTe2},
  author = {Charlie W. F. Freeman and Woohyun Cho and Paul S. Keatley and PeiYu Cai and Elton J. G. Santos and Robert J. Hicken and H. Yang and Hidekazu Kurebayashi and Murat Cubukcu and Maciej Dabrowski},
  journal= {arXiv preprint arXiv:2507.12959},
  year   = {2025}
}

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

Abstract

Keywords

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