Abstract
The emergence of long-range magnetic order in noncentrosymmetric compounds has stimulated interest in the possibility of exotic spin transport phenomena and topologically protected spin textures for applications in next-generation spintronics. Polar magnets, with broken symmetries of spatial inversion and time reversal, usually host chiral spin textures. This work reports on a wurtzite-structure polar magnetic metal, identified as AA′-stacked (Fe0.5Co0.5)5GeTe2, which exhibits a Néel-type skyrmion lattice as well as a Rashba-Edelstein effect at room temperature. Atomic resolution imaging of the structure reveals a structural transition as a function of Co-substitution, leading to the emergence of the polar phase at 50% Co. This discovery reveals an unprecedented layered polar magnetic system for investigating intriguing spin topologies, and it ushers in a promising new framework for spintronics.Received 16 October 2021Accepted 8 March 2022DOI:https://doi.org/10.1103/PhysRevMaterials.6.044403©2022 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasMagnetotransportSkyrmionsSpintronicsPhysical SystemsTransition metal dichalcogenidesCondensed Matter, Materials & Applied Physics
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