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@ARTICLE{Heinze:17272,
author = {Heinze, S. and von Bergmann, K. and Menzel, M. and Brede,
J. and Kubetzka, A. and Wiesendanger, R. and Bihlmayer, G.
and Blügel, S.},
title = {{S}pontaneous atomic-scale magnetic skyrmion lattice in two
dimensions},
journal = {Nature physics},
volume = {7},
issn = {1745-2473},
address = {Basingstoke},
publisher = {Nature Publishing Group},
reportid = {PreJuSER-17272},
year = {2011},
note = {S.H. thanks the Stifterverband fur die Deutsche
Wissenschaft for financial support. K. v. B., M. M., J.B.,
A. K. and R. W. thank the SFB668, the ERC Advanced Grant
FURORE and the Landesexzellenzcluster Nanospintronics for
financial support.},
abstract = {Skyrmions are topologically protected field configurations
with particle-like properties that play an important role in
various fields of science. Recently, skyrmions have been
observed to be stabilized by an external magnetic field in
bulk magnets. Here, we describe a two-dimensional square
lattice of skyrmions on the atomic length scale as the
magnetic ground state of a hexagonal Fe film of
one-atomic-layer thickness on the Ir(111) surface. Using
spin-polarized scanning tunnelling microscopy we can
directly image this non-collinear spin texture in real space
on the atomic scale and demonstrate that it is
incommensurate to the underlying atomic lattice. With the
aid of first-principles calculations, we develop a spin
model on a discrete lattice that identifies the interplay of
Heisenberg exchange, the four-spin and the
Dzyaloshinskii-Moriya interaction as the microscopic origin
of this magnetic state.},
keywords = {J (WoSType)},
cin = {PGI-1 / IAS-1 / JARA-FIT / JARA-SIM},
ddc = {530},
cid = {I:(DE-Juel1)PGI-1-20110106 / I:(DE-Juel1)IAS-1-20090406 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)VDB1045},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Physics, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000294485400019},
doi = {10.1038/nphys2045},
url = {https://juser.fz-juelich.de/record/17272},
}