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VIDEO DOI: https://doi.org/10.48448/d3hh-e143

technical paper

MMM 2022

November 07, 2022

Minneapolis, United States

Towards domain wall devices with 2D van der Waals magnets

The family of 2D compounds has grown almost exponentially since the discovery of graphene and so too the rapid exploration of their vast range of electronic properties. Some family members include superconductors, Mott insulators with charge-density waves, semimetals with topological properties, and transition metal dichalcogenides with spin-valley coupling1. Among several compounds, the realization of long-range ferromagnetic order in van der Waals (vdW) layered materials has been elusive till very recently. Long searched but only now discovered 2D magnets are one of the select group of materials that retain or impart strongly spin correlated properties at the limit of atomic layer thickness. In this presentation I will discuss how different layered compounds (e.g., CrX3 (X=F, Cl, Br, I), VI3, MnPS3, Fe3GeTe2, FePS3, CrGeTe3) can provide new playgrounds for exploration of spin correlations involving quantum-effects, topological spin-excitations and higher-order exchange interactions. I will show that this new generation of vdW magnets can help to revolutionize several technological domain wall applications from sensing to data storage, which can lead to new magnetic, magnetoelectric and magneto-optic applications in industry2,3,4,5. Moreover, I will discuss some challenges at the forefront of 2D vdW magnets and new opportunities to understand fundamental problems.

1. Q. Wang et al. ACS Nano 16, 6960 (2022).
2. D. Wahab et al. Adv. Mater. 33, 2004138 (2021).
3. D. Wahab et al. Appl. Phys. Rev. 8, 041411 (2021).
4. M. Alliati et al. npj Comput. Mater. 8, 3 (2022).
5. J. Macy et al., Appl. Phys. Rev. 8, 041401 (2021).


Transcript English (automatic)

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