Regensburg 2022 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 72: 2D Materials 3: hBN and Electronic Structure
O 72.7: Vortrag
Donnerstag, 8. September 2022, 16:30–16:45, S052
Engineering magnetic interactions in magnetic thin films with two-dimensional materials — •Hangyu Zhou1,2, Manuel dos Santos Dias1,3,4, Weisheng Zhao2, and Samir Lounis1,3 — 1Peter Grünberg Institut and Institute for Advanced Simulations, Forschungszentrum Jülich & JARA, 52425 Jülich, Germany — 2School of Integrated Circuit Science and Engineering, MIIT Key Laboratory of Spintronics, Beihang University, Beijing 100191, China — 3Faculty of Physics, University of Duisburg-Essen and CENIDE, 47053 Duisburg, Germany — 4Scientific Computing Department, STFC Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
Two-dimensional (2D) materials have received great attention due to their unique physical and chemical properties and ease of integration in heterostructures, which can lead to improved magnetic properties. Here, we explore with density functional theory calculations the impact of monolayers of graphene and hexagonal boron nitride (h-BN) on the magnetism and structural properties of a Co monolayer placed on Pt(111) and Au(111) surfaces. In particular, we investigate how the magnetic interactions, such as the Heisenberg exchange interaction and the Dzyaloshinskii-Moriya interaction (DMI), are influenced by the 2D monolayer and by structural reconstructions, which in turn can be utilized to ignite complex spin-textures. These results may contribute to an enhanced tunability of skyrmion formation in such composite magnetic heterostructures.