Journal Article

FZJ-2019-04594

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Complex magnetism of B20-MnGe: from spin-spirals, hedgehogs to monopoles

Bornemann, M. (Corresponding author)FZJ* ; Grytsiuk, S.FZJ* ; Baumeister, P. F.FZJ* ; dos Santos Dias, M.FZJ* ; Zeller, R.FZJ* ; Lounis, S.FZJ* ; Blügel, S.FZJ*

2019
IOP Publ.80390 Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/22725  doi:10.1088/1361-648X/ab38a0

Abstract: B20 compounds are the playground for various non-trivial magnetic textures such as skyrmions, which are topologically protected states. Recent measurements on B20-MnGe indicate no clear consensus on its magnetic behavior, which is characterized by the presence of either spin-spirals or three-dimensional objects interpreted to be a cubic lattice of hedgehogs and anti-hedgehogs. Utilizing a massively parallel linear scaling all-electron density functional algorithm, we find from full first-principles simulations on cells containing thousands of atoms that upon increase of the compound volume, the state with lowest energy switches across different magnetic phases: ferromagnetic, spin-spiral, hedgehog and monopole.

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IAS-1)
2. Quanten-Theorie der Materialien (PGI-1)
3. JARA-FIT (JARA-FIT)
4. JARA - HPC (JARA-HPC)
5. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 142 - Controlling Spin-Based Phenomena (POF3-142) (POF3-142)
2. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)
3. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)

Appears in the scientific report 2019

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; National-Konsortium ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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