Mixed topological semimetals driven by orbital complexity in two-dimensional ferromagnets

Niu C, Hanke JP, Buhl PM, Zhang H, Plucinski L, Wortmann D, Bluegel S, Bihlmayer G, Mokrousov Y (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 10

Article Number: 3179

Journal Issue: 1

DOI: 10.1038/s41467-019-10930-6

Abstract

The concepts of Weyl fermions and topological semimetals emerging in three-dimensional momentum space are extensively explored owing to the vast variety of exotic properties that they give rise to. On the other hand, very little is known about semimetallic states emerging in two-dimensional magnetic materials, which present the foundation for both present and future information technology. Here, we demonstrate that including the magnetization direction into the topological analysis allows for a natural classification of topological semimetallic states that manifest in two-dimensional ferromagnets as a result of the interplay between spin-orbit and exchange interactions. We explore the emergence and stability of such mixed topological semimetals in realistic materials, and point out the perspectives of mixed topological states for current-induced orbital magnetism and current-induced domain wall motion. Our findings pave the way to understanding, engineering and utilizing topological semimetallic states in two-dimensional spin-orbit ferromagnets.

Involved external institutions

Shandong-University (SDU) CN China (CN) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE) Technische Universität Darmstadt DE Germany (DE)

How to cite

APA:

Niu, C., Hanke, J.-P., Buhl, P.M., Zhang, H., Plucinski, L., Wortmann, D.,... Mokrousov, Y. (2019). Mixed topological semimetals driven by orbital complexity in two-dimensional ferromagnets. Nature Communications, 10(1). https://doi.org/10.1038/s41467-019-10930-6

MLA:

Niu, Chengwang, et al. "Mixed topological semimetals driven by orbital complexity in two-dimensional ferromagnets." Nature Communications 10.1 (2019).

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