Journal Article

FZJ-2023-04814

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png CrTe 2 as a two-dimensional material for topological magnetism in complex heterobilayers

Abuawwad, N. (Corresponding author)FZJ* ; Dias, M. d. S. ; Abusara, H. ; Lounis, S. (Corresponding author)FZJ*

2023
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevB.108.094409  doi:10.34734/FZJ-2023-04814

Abstract: The discovery of two-dimensional (2D) van der Waals magnetic materials and their heterostructures provided an exciting platform for emerging phenomena with intriguing implications in information technology. Here, based on a multiscale modeling approach that combines first-principles calculations and a Heisenberg model, we demonstrate that interfacing a CrTe2 layer with various Te-based layers enables the control of the magnetic exchange and Dzyaloshinskii-Moriya interactions as well as the magnetic anisotropy energy of the whole heterobilayer, and thereby the emergence of topological magnetic phases such as skyrmions and antiferromagnetic Néel merons. The latter are novel particles in the world of topological magnetism since they arise in a frustrated Néel magnetic environment and manifest as multiples of intertwined hexamer textures. Our findings pave a promising road for proximity-induced engineering of both ferromagnetic and long-sought antiferromagnetic chiral objects in the very same 2D material, which is appealing for information technology devices employing quantum materials.

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Contributing Institute(s):

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

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)
2. DFG project 443405092 - Konstruktion von 2D van der Waals Magnetismus auf der Nanoskala (443405092) (443405092)
3. DFG project 462676712 - iAFMskyrmionen- Intrinsische antiferromagnetische Skyrmionen aus ersten Prinzipien: Von der Stabilisierung, der Interaktion mit Defekten bis zum effizienten Nachweis (462676712) (462676712)
4. Pilotprojekt zur Entwicklung eines palästinensisch-deutschen Forschungs- und Promotionsprogramms 'Palestinian-German Science Bridge' (01DH16027) (01DH16027)

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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