Laser-induced topological spin switching in a 2D van der Waals magnet.

ABSTRACT: Two-dimensional (2D) van der Waals (vdW) magnets represent one of the most promising horizons for energy-efficient spintronic applications because their broad range of electronic, magnetic and topological properties. However, little is known about the interplay between light and spin properties in vdW layers. Here we show that ultrafast laser excitation can not only generate different type of spin textures in CrGeTe₃ vdW magnets but also induce a reversible transformation between them in a topological toggle switch mechanism. Our atomistic spin dynamics simulations and wide-field Kerr microscopy measurements show that different textures can be generated via high-intense laser pulses within the picosecond regime. The phase transformation between the different topological spin tex

SUBMITTER: Khela M 

PROVIDER: S-EPMC10011585 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature