Abnormal chirality in antiferromagnetic resonance modes of van der Waals 2D magnets.

ABSTRACT: Two-dimensional van der Waals (2D vdW) materials have attracted widespread research interest due to their unique physical properties and potential application prospects. In this study, an atomistic-level dynamical simulation method is employed to investigate the chirality of antiferromagnetic resonance modes in CrI₃ bilayer. Beyond the typical observations of a linear increase in high-frequency resonance mode and a linear decrease in low-frequency resonance mode, we have identified a distinct magnetization precession chirality in the CrI₃ bilayer at low magnetic fields: Spins in different layers exhibit opposite precession chirality. This unusual chirality phenomenon is attributed to the weak interlayer coupling inherent in vdW materials, which can be adjusted by tuni

SUBMITTER: Chen C 

PROVIDER: S-EPMC11754476 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature