Multiple Topological Magnetism in van der Waals Heterostructure of MnTe<sub>2</sub>/ZrS<sub>2</sub>.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 36576995.
- Also identified by DOI 10.1021/acs.nanolett.2c04388.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Topological magnetism in low-dimensional systems is of fundamental and practical importance in condensed-matter physics and material science. Here, using first-principles and Monte Carlo simulations, we present that multiple topological magnetism (i.e., skyrmion and bimeron) can survive in van der Waals heterostructure MnTe<sub>2</sub>/ZrS<sub>2</sub>. Arising from interlayer coupling, MnTe<sub>2</sub>/ZrS<sub>2</sub> can harbor a large Dzyaloshinskii-Moriya interaction. This, combined with exchange interaction, yields an intriguing skyrmion phase under a tiny magnetic field of 75 mT. Meanwhile, upon harnessing a small electric field, magnetic bimeron can be observed in MnTe<sub>2</sub>/ZrS<sub>2</sub>, suggesting the existence of multiple topological magnetism. Through interlayer sliding, both topological magnetisms can be switched on-off. In addition, the impacts of <i>d</i><sub>∥</sub> and <i>K</i><sub>eff</sub> on these spin textures are revealed, and a dimensionless parameter κ is utilized to describe their joint effect. These explored phenomena and insights not only are useful for fundamental research in topological magnetism but also enable novel applications in nanodevices.