TY  - JOUR
AU  - Hanke, Jan-Philipp
AU  - Freimuth, Frank
AU  - Blügel, Stefan
AU  - Mokrousov, Yuriy
TI  - Prototypical topological orbital ferromagnet γ-FeMn
JO  - Scientific reports
VL  - 7
SN  - 2045-2322
CY  - London
PB  - Nature Publishing Group
M1  - FZJ-2017-00793
SP  - 41078
PY  - 2017
AB  - We predict from first principles an entirely topological orbital magnetization in the noncoplanar bulk antiferromagnet γ-FeMn originating in the nontrivial topology of the underlying spin structure, without any reference to spin-orbit interaction. Studying the influence of strain, composition ratio, and spin texture on the topological orbital magnetization and the accompanying topological Hall effect, we promote the scalar spin chirality as key mechanism lifting the orbital degeneracy. The system is thus a prototypical topological orbital ferromagnet, the macroscopic orbital magnetization of which is prominent even without spin-orbit coupling. One of the remarkable features of γ-FeMn is the possibility for pronounced orbital magnetostriction mediated by the complex spin topology in real space.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000392379700001
DO  - DOI:10.1038/srep41078
UR  - https://juser.fz-juelich.de/record/826574
ER  -