TY  - JOUR
AU  - Belabbes, Abderrezak
AU  - Bihlmayer, Gustav
AU  - Blügel, Stefan
AU  - Manchon, Aurélien
TI  - Oxygen-enabled control of Dzyaloshinskii-Moriya Interaction in ultra-thin magnetic films
JO  - Scientific reports
VL  - 6
SN  - 2045-2322
CY  - London
PB  - Nature Publishing Group
M1  - FZJ-2016-02905
SP  - 24634
PY  - 2016
AB  - The search for chiral magnetic textures in systems lacking spatial inversion symmetry has attracted a massive amount of interest in the recent years with the real space observation of novel exotic magnetic phases such as skyrmions lattices, but also domain walls and spin spirals with a defined chirality. The electrical control of these textures offers thrilling perspectives in terms of fast and robust ultrahigh density data manipulation. A powerful ingredient commonly used to stabilize chiral magnetic states is the so-called Dzyaloshinskii-Moriya interaction (DMI) arising from spin-orbit coupling in inversion asymmetric magnets. Such a large antisymmetric exchange has been obtained at interfaces between heavy metals and transition metal ferromagnets, resulting in spin spirals and nanoskyrmion lattices. Here, using relativistic first-principles calculations, we demonstrate that the magnitude and sign of DMI can be entirely controlled by tuning the oxygen coverage of the magnetic film, therefore enabling the smart design of chiral magnetism in ultra-thin films. We anticipate that these results extend to other electronegative ions and suggest the possibility of electrical tuning of exotic magnetic phases.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000374539800001
C6  - pmid:27103448
DO  - DOI:10.1038/srep24634
UR  - https://juser.fz-juelich.de/record/810022
ER  -