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@ARTICLE{Zimmermann:863417,
author = {Zimmermann, Bernd and Bihlmayer, Gustav and Böttcher,
Marie and Bouhassoune, Mohammed and Lounis, Samir and
Sinova, Jairo and Heinze, Stefan and Blügel, Stefan and
Dupé, Bertrand},
title = {{C}omparison of first-principles methods to extract
magnetic parameters in ultrathin films: {C}o/{P}t(111)},
journal = {Physical review / B},
volume = {99},
number = {21},
issn = {2469-9950},
address = {Woodbury, NY},
publisher = {Inst.},
reportid = {FZJ-2019-03487},
pages = {214426},
year = {2019},
abstract = {We compare three distinct computational approaches based on
first-principles calculations within density functional
theory to explore the magnetic exchange and the
Dzyaloshinskii-Moriya interactions (DMI) of a Co monolayer
on Pt(111), namely, (i) the method of infinitesimal
rotations of magnetic moments based on the
Korringa-Kohn-Rostoker (KKR) Green function method, (ii) the
generalized Bloch theorem applied to spiraling magnetic
structures and (iii) supercell calculations with
noncollinear magnetic moments, the latter two being based on
the full-potential linearized augmented plane wave (FLAPW)
method. In particular, we show that the magnetic interaction
parameters entering micromagnetic models describing the
long-wavelength deviations from the ferromagnetic state
might be different from those calculated for fast rotating
magnetic structures, as they are obtained by using
(necessarily rather small) supercell or large spin-spiral
wave vectors. In the micromagnetic limit, which we motivate
to use by an analysis of the Fourier components of the
domain-wall profile, we obtain consistent results for the
spin stiffness and DMI spiralization using methods (i) and
(ii). The calculated spin stiffness and Curie temperature
determined by subsequent Monte Carlo simulations are
considerably higher than estimated from the bulk properties
of Co, a consequence of a significantly increased
nearest-neighbor exchange interaction in the Co monolayer
$(+50\%).$ The calculated results are carefully compared
with the literature.},
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) / 143 -
Controlling Configuration-Based Phenomena (POF3-143) /
Magnetic Anisotropy of Metallic Layered Systems and
Nanostructures $(jiff13_20131101)$ / Magnetic Skyrmions from
first-principles $(jias1a_20181101)$},
pid = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143 /
$G:(DE-Juel1)jiff13_20131101$ /
$G:(DE-Juel1)jias1a_20181101$},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000471949900002},
doi = {10.1103/PhysRevB.99.214426},
url = {https://juser.fz-juelich.de/record/863417},
}