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MA: Fachverband Magnetismus
MA 57: Posters Magnetism II
MA 57.11: Poster
Donnerstag, 19. März 2020, 15:00–18:00, P3
Magnetism and spin dynamics in single-layer antiferromagnetic insulator MnPS3 — •Martin Alliati1, Richard F. L. Evans2, and Elton J. G. Santos1 — 1School of Mathematics and Physics, Queen’s University Belfast, BT7 1NN, UK — 2Department of Physics, University of York, YO10 5DD, UK
Two-dimensional magnets have recently attracted considerable attention, both from a fundamental standpoint and in terms of their potential applications, e.g., the prospect of antiferromagnetic spintronics devices based on single-layer transition metal thiophosphates. In particular, the magnetic properties in MnPS3 are intrinsically coupled to the crystal and electronic structures, and then can be affected by tunable parameters. This arises from an interplay between different electronic quantities that remains to be fully understood at the monolayer limit. Here we tackle this challenge through a multi-scale approach. First, ab-initio calculations were performed to understand the crystal and electronic structures of this material, as well as its magnetic properties such as easy-axis anisotropy and anisotropic exchange. Subsequently, nano-scale magnetic simulations were performed to unveil the effect of different perturbations on the magnetic ordering of this material through Monte Carlo methods and Landau-Lifshitz-Gilbert (LLG) dynamics. This includes a description of the magnetic domains at different temperatures, domain wall motion and ultrafast spin dynamics induced by pulsed magnetic fields. The results presented here broaden our understanding of single-layer MnPS3, thus representing a step forward towards ultrathin antiferromagnetic spintronics.