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@ARTICLE{Jin:188004,
author = {Jin, W. T. and Li, Wei and Su, Y. and Nandi, S. and Xiao,
Y. and Jiao, W. H. and Meven, M. and Sazonov, A. P. and
Feng, E. and Chen, Yan and Ting, C. S. and Cao, G. H. and
Brückel, Th.},
title = {{M}agnetic ground state of superconducting
$\mathrm{{E}u}\left(\mathrm{{F}e}{}_{0.88}\mathrm{{I}r}{}_{0.12}\right){}_{2}\mathrm{{A}s}{}_{2}$:
{A} combined neutron diffraction and first-principles
calculation study},
journal = {Physical review / B},
volume = {91},
number = {6},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {FZJ-2015-01493},
pages = {064506},
year = {2015},
abstract = {The magnetic order of the localized Eu2+ spins in optimally
doped Eu(Fe1−xIrx)2As2 (x=0.12) with superconducting
transition temperature TSC=22 K was investigated by
single-crystal neutron diffraction. The Eu2+ moments were
found to be ferromagnetically aligned along the c direction
with an ordered moment of 7.0(1) μB well below the magnetic
phase transition temperature TC=17 K. No evidence of the
tetragonal-to-orthorhombic structural phase transition was
found in this compound within the experimental uncertainty,
in which the spin-density-wave (SDW) order of the Fe
sublattice is supposed to be completely suppressed and the
superconductivity gets fully developed. The ferromagnetic
ground state of the Eu2+ spins in Eu(Fe0.88Ir0.12)2As2 was
supported by the first-principles density functional
calculation. In addition, comparison of the electronic
structure calculations between Eu(Fe0.875Ir0.125)2As2 and
the parent compound EuFe2As2 indicates stronger
hybridization and more expanded bandwidth due to the Ir
substitution, which together with the introduction of
electrons might work against the Fe-SDW in favor of the
superconductivity.},
cin = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
(München) ; JCNS-FRM-II / JCNS-2 / PGI-4 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {144 - Controlling Collective States (POF3-144) / 524 -
Controlling Collective States (POF3-524) / 6212 - Quantum
Condensed Matter: Magnetism, Superconductivity (POF3-621) /
6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-144 / G:(DE-HGF)POF3-524 /
G:(DE-HGF)POF3-6212 / G:(DE-HGF)POF3-6G15 /
G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)HEIDI-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000352302300006},
doi = {10.1103/PhysRevB.91.064506},
url = {https://juser.fz-juelich.de/record/188004},
}