Microscopic parameters of the van der Waals CrSBr antiferromagnet from microwave absorption experiments

Abstract

Microwave absorption experiments employing a phase-sensitive external resistive detection are performed for a topical van der Waals antiferromagnet CrSBr. The field dependence of two resonance modes is measured in an applied field parallel to the three principal crystallographic directions, revealing anisotropies and magnetic transitions in this material. To account for the observed results, we formulate a microscopic spin model with a bi-axial single-ion anisotropy and inter-plane exchange. Theoretical calculations give an excellent description of full magnon spectra enabling us to precisely determine microscopic interaction parameters for CrSBr.

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References in corpus (3)

• Interlayer Electronic Coupling on Demand in a 2D Magnetic Semiconductor
• Exciton-Coupled Coherent Magnons in a 2D Semiconductor
• Hidden low-temperature magnetic order revealed through magnetotransport in monolayer CrSBr

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• Spin waves in the bilayer van der Waals magnet CrSBr
• Van der Waals CrSBr alloys with tunable magnetic and optical properties
• Spin-flip optical excitations in van der Waals antiferromagnet CrPS${}_4$
• Magnetic-field-induced magnon portfolio in a van der Waals magnet