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Twisted double bilayers of an antiferromagnet show tunable moiré magnetism

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Stacking a bilayer of chromium triiodide, a layered antiferromagnet, onto another with a twist angle gives rise to a moiré magnet with rich magnetic phases, including ferromagnetic and antiferromagnetic orders. The magnetic orders can be controlled through the twist angle, temperature and electrical gating, with the system also showing voltage-assisted magnetic switching.

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Fig. 1: A tDB CrI3 device and the electrical control of moiré magnetism.

References

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This is a summary of: Cheng, G. et al. Electrically tunable moiré magnetism in twisted double bilayers of chromium triiodide. Nat. Electron. https://doi.org/10.1038/s41928-023-00978-0 (2023).

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Twisted double bilayers of an antiferromagnet show tunable moiré magnetism. Nat Electron 6, 403–404 (2023). https://doi.org/10.1038/s41928-023-00980-6

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