Influence of capping layer on skyrmion and domain-wall formation in Co/Pt(111)

Authors : Caner DEĞER

Pages : 356-363

View : 15 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In order to realize skyrmion-based next-generation logic and memory devices, investigating the impact ofmaterial parameters on skyrmion formation is essential. Capping magnetic thin layers for the purposes of both preventingoxidation and/or enhancing crystal structure has an influence on chiral spin texture of the layer. In this paper, we havecarried out a systematic computational study on magnetic skyrmion and domain-wall formation in which 2-atomic layerof Co, deposited on Ptinsert ignore into journalissuearticles values(111); substrate and capped by certain insert ignore into journalissuearticles values(Ta, Ir, and Pt); 5delements with various thicknesses.We have determined the magnetic topography of the structures by simulations based on DFT-calculated parameters;micromagnetic Dzyaloshinskii-Moriya interaction, exchange interaction, and magnetic anisotropy coefficients. We haverevealed the influence of capping material and thickness on the chiral spin texture. We anticipate that our predictionsprovide a rational basis for skyrmion-based devices in which skyrmions are used as logic or information element.
Keywords : Chiral spin textures, magnetic skyrmions, first principles calculations, micromagnetic simulations