This title appears in the Scientific Report :
2021
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.103.024410 in citations.
Please use the identifier: http://hdl.handle.net/2128/26798 in citations.
Short period magnetization texture of B20-MnGe explained by thermally fluctuating local moments
Short period magnetization texture of B20-MnGe explained by thermally fluctuating local moments
B20-type compounds, such as MnSi and FeGe, host helimagnetic and skyrmion phases at the mesoscale, which are canonically explained by the combination of ferromagnetic isotropic interactions with weaker chiral Dzyaloshinskii-Moriya ones. Mysteriously, MnGe evades this paradigm as it displays a noncol...
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Personal Name(s): | Mendive-Tapia, Eduardo (Corresponding author) |
---|---|
dos Santos Dias, Manuel / Grytsiuk, Sergii / Staunton, Julie B. / Blügel, Stefan / Lounis, Samir | |
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, 103 103 (2021 2021) 2 2, S. 024410 024410 |
Imprint: |
Woodbury, NY
Inst.
2021
|
DOI: |
10.1103/PhysRevB.103.024410 |
Document Type: |
Journal Article |
Research Program: |
First-principles investigation of single magnetic nano-skyrmions ohne Topic |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/26798 in citations.
B20-type compounds, such as MnSi and FeGe, host helimagnetic and skyrmion phases at the mesoscale, which are canonically explained by the combination of ferromagnetic isotropic interactions with weaker chiral Dzyaloshinskii-Moriya ones. Mysteriously, MnGe evades this paradigm as it displays a noncollinear magnetic state at a much shorter nanometer scale. Here we show that the length scale and volume-dependent magnetic properties of MnGe stem from purely isotropic exchange interactions, generally obtained in the paramagnetic state. Our approach is validated by comparing MnGe with the canonical B20-helimagnet FeGe. The free energy of MnGe is calculated, from which we show how triple-q magnetic states can stabilize by adding higher-order interactions. |