Neutron diffraction study of magnetism in van der Waals layered MnBi$_{2n}$Te$_{3n+1}$

Autor: Ding, Lei, Hu, Chaowei, Feng, Erxi, Jiang, Chenyang, Kibalin, Iurii A., Gukasov, Arsen, Chi, MiaoFang, Ni, Ni, Cao, Huibo

Two-dimensional van der Waals MnBi$_{2n}$Te$_{3n+1}$ (n = 1, 2, 3, 4) compounds have been recently found to be intrinsic magnetic topological insulators rendering quantum anomalous Hall effect and diverse topological states. Here, we summarize and co

Externí odkaz: http://arxiv.org/abs/2012.15415

Magnetization density distribution of Sr$_2$IrO$_4$: Deviation from a local $j_\text{eff}=1/2$ picture

Autor: Jeong, Jaehong, Lenz, Benjamin, Gukasov, Arsen, Fabreges, Xavier, Sazonov, Andrew, Hutanu, Vladimir, Louat, Alex, Bounoua, Dalila, Martins, Cyril, Biermann, Silke, Brouet, Véronique, Sidis, Yvan, Bourges, Philippe

Publikováno v: Phys. Rev. Lett. 125, 097202 (2020)

$5d$ iridium oxides are of huge interest due to the potential for new quantum states driven by strong spin-orbit coupling. The strontium iridate Sr$_2$IrO$_4$ is particularly in the spotlight because of the so-called $j_\text{eff}=1/2$ state consisti

Externí odkaz: http://arxiv.org/abs/1904.09139

Spin Density and Non-Collinear Magnetization in Frustrated Pyrochlore \tbti from Polarized Neutron Scattering

Autor: Gukasov, Arsen, Cao, Huibo, Mirebeau, Isabelle, Bonville, Pierre

We used a local susceptibility approach in extensive polarized neutron diffraction studies of the spin liquid \tbti. For a magnetic field applied along the [110] and [111] directions, we found that, at high temperature, all Tb moments are collinear a

Externí odkaz: http://arxiv.org/abs/0904.4553

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Magnetic order and sign of the Dzyaloshinskii-Moriya interaction in 2D antiferromagnet Ba2CoGe2O7 under applied magnetic field

Autor: Thoma, Henrik, Hutanu, Vladimir, Dutta, Rajesh, Gukasov, Arsen, Kocsis, Vilmos, Tokunaga, Yusuke, Taguchi, Yasujiro, Tokura, Yoshinori, Kézsmárki, István, Roth, Georg, Angst, Manuel

Publikováno v: IEEE transactions on magnetics 58(2), 6400305 (2022). doi:10.1109/TMAG.2021.3082983
IEEE Transactions on Magnetics
IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2021, ⟨10.1109/TMAG.2021.3082983⟩
IEEE Transactions on Magnetics, 2021, ⟨10.1109/TMAG.2021.3082983⟩

The Dzyaloshinskii–Moriya interaction (DMI), i.e., the antisymmetric part of the exchange coupling tensor, favors the perpendicular arrangement of magnetic moment, thus inducing canting in otherwise collinear structures. The DMI is the prerequisite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::9554a86355abc9c3b9b6f4376eec0b4f
https://hdl.handle.net/2128/30549