Stacking-Dependent Magnetism in Bilayer CrI₃ Article Swipe

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Magnetism Stacking Bilayer Condensed matter physics Materials science Crystallography Nanotechnology Chemistry Physics Nuclear magnetic resonance Membrane Biochemistry

Nikhil Sivadas , Satoshi Okamoto , Xiaodong Xu , Craig J. Fennie , Di Xiao ·

YOU? · · 2018 · Open Access · · DOI: https://doi.org/10.1021/acs.nanolett.8b03321 · OA: W2886211407

We report the connection between the stacking order and magnetic properties of bilayer CrI<sub>3</sub> using first-principles calculations. We show that the stacking order defines the magnetic ground state. By changing the interlayer stacking order, one can tune the interlayer exchange interaction between antiferromagnetic and ferromagnetic. To measure the predicted stacking-dependent magnetism, we propose using linear magnetoelectric effect. Our results not only gives a possible explanation for the observed antiferromagnetism in bilayer CrI<sub>3</sub> but also have direct implications in heterostructures made of two-dimensional magnets.