Topological spin textures in 1 T -phase Janus magnets: Interplay between Dzyaloshinskii-Moriya interaction, magnetic frustration, and isotropic higher-order interactions
Abstract
The search for topological magnetism in two-dimensional (2D) magnetic materials is one of the hot topics in spintronics. We present comprehensive studies of magnetic phases in a series of Janus monolayers Mn X Z (MnAsBr, MnAsI, MnPBr, and MnPCl) and Cr Y Z (Y =Se , Te; and Z =Cl , Br, I) via combining first-principles calculations and atomistic spin model simulations. Sizable Dzyaloshinskii-Moriya interaction can be realized in the Mn X Z and Cr Y Z monolayers due to their intrinsic inversion symmetry breaking. More interestingly, the Mn X Z and Cr Y Z monolayers exhibit different degrees of magnetic frustration and isotropic higher-order interactions. Lastly, our atomistic spin model simulations demonstrate that a variety of topological spin textures can be generated by the interplay among complex magnetic interactions. These results provide valuable information and fundamental understanding for topological magnetism in 2D magnets.
- Publication:
-
Physical Review B
- Pub Date:
- February 2023
- DOI:
- 10.1103/PhysRevB.107.054408
- Bibcode:
- 2023PhRvB.107e4408L