%0 Journal Article %1 PhysRevLett.124.197201 %A Tan, Aoyu %A Labracherie, Valentin %A Kunchur, Narayan %A Wolter, Anja U. B. %A Cornejo, Joaquin %A Dufouleur, Joseph %A Büchner, Bernd %A Isaeva, Anna %A Giraud, Romain %D 2020 %I American Physical Society %J Phys. Rev. Lett. %K b %N 19 %P 197201 %R 10.1103/PhysRevLett.124.197201 %T Metamagnetism of weakly coupled antiferromagnetic topological insulators %U https://link.aps.org/doi/10.1103/PhysRevLett.124.197201 %V 124 %X The magnetic properties of the van der Waals magnetic topological insulators $MnBi_2Te_4$ and $MnBi_4Te_7$ 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 signatures, such as the spin-flop transition of the uniaxial antiferromagnet and the switching field of the metamagnet.

@article{PhysRevLett.124.197201, abstract = {The magnetic properties of the van der Waals magnetic topological insulators $MnBi_2Te_4$ and $MnBi_4Te_7$ 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 signatures, such as the spin-flop transition of the uniaxial antiferromagnet and the switching field of the metamagnet.}, added-at = {2021-05-27T10:10:58.000+0200}, author = {Tan, Aoyu and Labracherie, Valentin and Kunchur, Narayan and Wolter, Anja U. B. and Cornejo, Joaquin and Dufouleur, Joseph and Büchner, Bernd and Isaeva, Anna and Giraud, Romain}, biburl = {https://www.bibsonomy.org/bibtex/252f06f02b8b4427c9e489a8112592ee9/ctqmat}, day = 13, description = {Phys. Rev. Lett. 124, 197201 (2020) - Metamagnetism of Weakly Coupled Antiferromagnetic Topological Insulators}, doi = {10.1103/PhysRevLett.124.197201}, interhash = {272c6a2c29a18523fd301ac73a26a38c}, intrahash = {52f06f02b8b4427c9e489a8112592ee9}, journal = {Phys. Rev. Lett.}, keywords = {b}, month = {05}, number = 19, numpages = {6}, pages = 197201, publisher = {American Physical Society}, timestamp = {2023-10-13T11:41:35.000+0200}, title = {Metamagnetism of weakly coupled antiferromagnetic topological insulators}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.124.197201}, volume = 124, year = 2020 }