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@ARTICLE{Brown:10677,
author = {Brown, P.J. and Chatterji, T. and Stunault, A. and Su, Y.
and Xiao, Y. and Mittal, R. and Brückel, T. and Wolf, Th
and Adelmann, P.},
title = {{M}agnetization distribution in the tetragonal phase of
${B}a{F}e_2{A}s_2$},
journal = {Physical review / B},
volume = {82},
number = {2},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-10677},
pages = {024421},
year = {2010},
note = {Record converted from VDB: 12.11.2012},
abstract = {We have determined the spatial distribution of the
magnetization induced by a field of 9 T in the tetragonal
phase of BaFe2As2 using polarized neutron diffraction.
Magnetic structure factors derived from the polarization
dependence of the intensities of Bragg reflections were used
to make a maximum-entropy reconstruction of the distribution
projected on the 110 plane. The reconstruction shows clearly
that the magnetization is confined to the region around the
iron atoms and that there is no significant magnetization
associated with either As or Ba atoms. The distribution of
magnetization around the Fe atom is significantly
nonspherical with a shape which is extended in the < 111 >
directions in the projection. These results show that the
electrons which give rise to the paramagnetic susceptibility
are confined to the Fe atoms their distribution suggests
that they occupy 3d t(2g)-type orbitals with approximate to
$60\%$ in those of xy symmetry.},
keywords = {J (WoSType)},
cin = {IFF-5 / IFF-4 / Jülich Centre for Neutron Science JCNS
(JCNS) ; JCNS / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)VDB785 / I:(DE-Juel1)VDB784 /
I:(DE-Juel1)JCNS-20121112 / $I:(DE-82)080009_20140620$},
pnm = {BioSoft: Makromolekulare Systeme und biologische
Informationsverarbeitung / Großgeräte für die Forschung
mit Photonen, Neutronen und Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK505 / G:(DE-Juel1)FUEK415},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000280173800004},
doi = {10.1103/PhysRevB.82.024421},
url = {https://juser.fz-juelich.de/record/10677},
}