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@ARTICLE{Bouaziz:827874,
author = {Bouaziz, Juba and dos Santos Dias, Manuel and Ziane,
Abdelhamid and Benakki, Mouloud and Blügel, Stefan and
Lounis, Samir},
title = {{C}hiral magnetism of magnetic adatoms generated by
{R}ashba electrons},
journal = {New journal of physics},
volume = {19},
number = {2},
issn = {1367-2630},
address = {[Bad Honnef]},
publisher = {Dt. Physikalische Ges.},
reportid = {FZJ-2017-01957},
pages = {023010},
year = {2017},
abstract = {We investigate long-range chiral magnetic interactions
among adatoms mediated by surface states spin-splitted by
spin–orbit coupling. Using the Rashba model, the tensor of
exchange interactions is extracted wherein a
thepseudo-dipolar interaction is found, in addition to the
usual isotropic exchange interaction and the
Dzyaloshinskii–Moriya interaction. We find that, despite
the latter interaction, collinear magnetic states can still
be stabilized by the pseudo-dipolar interaction. The
interadatom distance controls the strength of these terms,
which we exploit to design chiral magnetism in Fe
nanostructures deposited on a Au(111) surface. We
demonstrate that these magnetic interactions are related to
superpositions of the out-of-plane and in-plane components
of the skyrmionic magnetic waves induced by the adatoms in
the surrounding electron gas. We show that, even if the
interatomic distance is large, the size and shape of the
nanostructures dramatically impacts on the strength of the
magnetic interactions, thereby affecting the magnetic ground
state. We also derive an appealing connection between the
isotropic exchange interaction and the
Dzyaloshinskii–Moriya interaction, which relates the
latter to the first-order change of the former with respect
to spin–orbit coupling. This implies that the chirality
defined by the direction of the Dzyaloshinskii–Moriya
vector is driven by the variation of the isotropic exchange
interaction due to the spin–orbit interaction.},
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)},
pid = {G:(DE-HGF)POF3-142 / G:(DE-HGF)POF3-143},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000405916900006},
doi = {10.1088/1367-2630/aa59e8},
url = {https://juser.fz-juelich.de/record/827874},
}