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@ARTICLE{Brinker:878397,
author = {Brinker, Sascha and dos Santos Dias, Manuel and Lounis,
Samir},
title = {{P}rospecting chiral multisite interactions in prototypical
magnetic systems},
journal = {Physical review research},
volume = {2},
number = {3},
issn = {2643-1564},
address = {College Park, MD},
publisher = {APS},
reportid = {FZJ-2020-02833},
pages = {033240},
year = {2020},
abstract = {Atomistic spin models have found enormous success in
addressing the properties of magnetic materials, grounded on
the identification of the relevant underlying magnetic
interactions. For instance, the huge development in the
field of magnetic skyrmions and other noncollinear magnetic
structures is largely due to our understanding of the chiral
Dzyaloshinskii-Moriya interaction. Recently, various works
have proposed new types of chiral interactions, with
seemingly different forms, but the big picture is still
missing. Here, we present a systematic construction of a
generalized spin model containing isotropic and chiral
multisite interactions. These are motivated by a microscopic
model that incorporates local spin moments and the
spin-orbit interaction, and their symmetry properties are
established. We show that the chiral interactions arise
solely from the spin-orbit interaction and that the
multisite interactions do not have to follow Moriya's rules,
unlike the Dzyaloshinskii-Moriya and chiral biquadratic
interactions. The chiral multisite interactions do not
vanish as a result of inversion symmetry and comply with a
generalized Moriya rule: If all sites connected by the
interaction lie in the same mirror plane, the chiral
interaction vector must be perpendicular to this plane. We
then illustrate our theoretical considerations with density
functional theory calculations for prototypical magnetic
systems. These are triangular trimers built out of Cr, Mn,
Fe, and Co adatoms on the Re(0001), Pt(111), and Au(111)
surfaces, for which C3v symmetry applies, and Cr and Fe
square tetramers on Pt(001) with C4v symmetry. The multisite
interactions are substantial in magnitude and cannot be
neglected when comparing the energy of different magnetic
structures. Finally, we discuss the recent literature in
light of our findings and clarify several unclear or
confusing points.},
cin = {IAS-1 / PGI-1 / JARA-FIT / JARA-HPC},
ddc = {530},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106 /
$I:(DE-82)080009_20140620$ / $I:(DE-82)080012_20140620$},
pnm = {142 - Controlling Spin-Based Phenomena (POF3-142) /
First-principles investigation of long range effects in
magnetic nanostructures $(jias1c_20171101)$},
pid = {G:(DE-HGF)POF3-142 / $G:(DE-Juel1)jias1c_20171101$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000604150000008},
doi = {10.1103/PhysRevResearch.2.033240},
url = {https://juser.fz-juelich.de/record/878397},
}