# Metamagnetism of Weakly Coupled Antiferromagnetic Topological Insulators.

@article{Tan2020MetamagnetismOW, title={Metamagnetism of Weakly Coupled Antiferromagnetic Topological Insulators.}, author={A. Tan and Valentin Labracherie and Narayan Kunchur and Anja U. B. Wolter and Joaquin Cornejo and Joseph Dufouleur and Bernd B{\"u}chner and Anna Isaeva and Romain Giraud}, journal={Physical review letters}, year={2020}, volume={124 19}, pages={ 197201 } }

The magnetic properties of the van der Waals magnetic topological insulators MnBi_{2}Te_{4} and MnBi_{4}Te_{7} are investigated by magnetotransport measurements. We evidence that the relative strength of the interlayer exchange coupling J to the uniaxial anisotropy K controls a transition from an A-type antiferromagnetic order to a ferromagneticlike metamagnetic state. A bilayer Stoner-Wohlfarth model allows us to describe this evolution, as well as the typical angular dependence of specific…

## 21 Citations

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