TY  - JOUR
AU  - Hanke, J.-P.
AU  - Freimuth, F.
AU  - Nandy, A. K.
AU  - Zhang, H.
AU  - Blügel, S.
AU  - Mokrousov, Y.
TI  - Role of Berry phase theory for describing orbital magnetism: From magnetic heterostructures to topological orbital ferromagnetsjara
JO  - Physical review / B
VL  - 94
IS  - 12
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2016-04753
SP  - 121114
PY  - 2016
AB  - We address the importance of the modern theory of orbital magnetization for spintronics. Based on an all-electron first-principles approach, we demonstrate that the predictive power of the routinely employed “atom-centered” approximation is limited to materials like elemental bulk ferromagnets, while the application of the modern theory of orbital magnetization is crucial in chemically or structurally inhomogeneous systems such as magnetic thin films, and materials exhibiting nontrivial topology in reciprocal and real space, e.g., Chern insulators or noncollinear systems. We find that the modern theory is particularly crucial for describing magnetism in a class of materials that we suggest here—topological orbital ferromagnets.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000383147000001
DO  - DOI:10.1103/PhysRevB.94.121114
UR  - https://juser.fz-juelich.de/record/818279
ER  -