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… 

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