Conference Presentation (Other)

FZJ-2023-01756

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Non-synthetic antiferromagnetic multi-meronic Néel spin-textures in thin films

Aldarawsheh, A. (Corresponding author)FZJ* ; Sallermann, M.FZJ* ; Abusaa, M. ; Lounis, S. (Corresponding author)FZJ*

2023

Please use a persistent id in citations: http://hdl.handle.net/2128/34321

Abstract: The realization of topological antiferromagnetic (AFM) solitons in realmaterials is a major goal towards their use in information technology.In contrast to their ferromagnetic version, they are expected to beinsensitive to the Hall effect and dipolar interactions. Here, based ondensity functional theory in conjunction with atomistic spin dynamics,we predict the emergence in a triangular lattice of complex Néel AFMvortex-antivortex structures in transition metallic thin films interfacedwith Ir and Pd layers. These topological structures are intrinsic, i.e.they form in a single AFM material, but are different from the re-cently predicted intrinsic AFM skyrmions [1]. They can carry varioustopological charges and can combine in hexameronic or dodecameronictextures, which can show enhanced stability with respect to externalmagnetic field depending on the electronic nature of the interfaces.[1] A. Aldarawsheh et al., ArXiv:2202.12090 (2022). Work funded bythe PGSB (BMBF-01DH16027) and DFG (SPP 2137; LO 1659/8-1).

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2023

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Database coverage:

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