Regensburg 2022 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 11: Computational Magnetism 1

MA 11.8: Vortrag

Montag, 5. September 2022, 16:45–17:00, H48

Magnetism in strongly correlated twisted bilayers from first principles — •Aditya Putatunda and Sergey Artyukhin — Italian Institute of Technology, Genova, Italy

Twisted bilayer structures of van der Waals materials attract experimental and theoretical interest because of easy single layer exfoliation and processing and a variety of correlated states.1,2 Magnetic twisted bilayers hosting skyrmions have recently been demonstrated.3 Within first-principles approach, large supercells and tight convergence are required to compute magnetic interactions. Here we combine DFT and model simulations of Wannier function based tight-binding Hamiltonian to study the states in the twisted bilayer of CrI3.

[1] Xu et al., Nature Nanotechnology 17, 143*147 (2022) [2] N. Sivadas., Nano Lett. 18, 7658*7664 (2018) [3] Shang et al., ACS Appl. Nano Mater. 3, 1282*1288 (2020)