This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/24047 in citations.
Please use the identifier: http://dx.doi.org/10.1038/s41467-019-14030-3 in citations.
Topological–chiral magnetic interactions driven by emergent orbital magnetism
Topological–chiral magnetic interactions driven by emergent orbital magnetism
Two hundred years ago, Ampère discovered that electric loops in which currents of electrons are generated by a penetrating magnetic field can mutually interact. Here we show that Ampère’s observation can be transferred to the quantum realm of interactions between triangular plaquettes of spins on a...
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Personal Name(s): | Grytsiuk, Sergii (Corresponding author) |
---|---|
Hanke, J.-P. / Hoffmann, M. / Bouaziz, Juba / Gomonay, O. / Bihlmayer, G. / Lounis, S. / Mokrousov, Y. / Blügel, S. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 JARA - HPC; JARA-HPC JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | Nature Communications, 11 (2020) 1, S. 511 |
Imprint: |
[London]
Nature Publishing Group UK
2020
|
PubMed ID: |
31980610 |
DOI: |
10.1038/s41467-019-14030-3 |
Document Type: |
Journal Article |
Research Program: |
Magnetic Skyrmions from first-principles Topological transport in real materials from ab initio Magnetic Skyrmions from first-principles Controlling Configuration-Based Phenomena Controlling Spin-Based Phenomena |
Link: |
Restricted OpenAccess Restricted OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1038/s41467-019-14030-3 in citations.
Two hundred years ago, Ampère discovered that electric loops in which currents of electrons are generated by a penetrating magnetic field can mutually interact. Here we show that Ampère’s observation can be transferred to the quantum realm of interactions between triangular plaquettes of spins on a lattice, where the electrical currents at the atomic scale are associated with the orbital motion of electrons in response to the non-coplanarity of neighbouring spins playing the role of a magnetic field. The resulting topological orbital moment underlies the relation of the orbital dynamics with the topology of the spin structure. We demonstrate that the interactions of the topological orbital moments with each other and with the spins form a new class of magnetic interactions − topological–chiral interactions − which can dominate over the Dzyaloshinskii–Moriya interaction, thus opening a path for realizing new classes of chiral magnetic materials with three-dimensional magnetization textures such as hopfions. |