This title appears in the Scientific Report :
2020
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.102.184407 in citations.
Please use the identifier: http://hdl.handle.net/2128/26398 in citations.
Mixed topology ring states for Hall effect and orbital magnetism in skyrmions of Weyl semimetals
Mixed topology ring states for Hall effect and orbital magnetism in skyrmions of Weyl semimetals
As skyrmion lattices are attracting increasing attention owing to their properties driven by real-space topology, properties of magnetic Weyl semimetals with complex k-space topology are moving into the focus of research. We consider Hall transport properties and orbital magnetism of skyrmion lattic...
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Personal Name(s): | Redies, Matthias (Corresponding author) |
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Lux, F. R. / Hanke, J.-P. / Buhl, P. M. / Blügel, S. / Mokrousov, Y. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 JARA - HPC; JARA-HPC JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | Physical Review B Physical review / B, 102 102 (2020 2020) 18 18, S. 184407 184407 |
Imprint: |
Woodbury, NY
Inst.
2020
|
DOI: |
10.1103/PhysRevB.102.184407 |
Document Type: |
Journal Article |
Research Program: |
Topological transport in real materials from ab initio Controlling Configuration-Based Phenomena Controlling Spin-Based Phenomena |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/26398 in citations.
As skyrmion lattices are attracting increasing attention owing to their properties driven by real-space topology, properties of magnetic Weyl semimetals with complex k-space topology are moving into the focus of research. We consider Hall transport properties and orbital magnetism of skyrmion lattices imprinted in topological semimetals by employing a minimal model of a mixed Weyl semimetal which, as a function of the magnetization direction, exhibits two Chern insulator phases separated by a Weyl state. We find that while the orbital magnetization is topologically robust and Hall transport properties exhibit a behavior consistent with that expected for the recently discovered chiral Hall effect [F. R. Lux et al., Phys. Rev. Lett. 124, 096602 (2020)], their evolution in the region of the Chern insulator gap is largely determined by the properties of the so-called mixed topology ring states, emerging in domain walls that separate the skyrmion core from the ferromagnetic background. In particular, we show that these localized ring states possess a robust orbital chirality which reverses sign as a function of the skyrmion radius, thereby mediating a smooth switching dynamics of the orbital magnetization. We speculate that while the emergent ring states can possibly play a role in the physics of Majorana states, probing their properties experimentally can provide insights into the details of skyrmionic spin structures. |