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@ARTICLE{Li:3497,
author = {Li, H.-F. and Su, Y. and Xiao, Y. G. and Persson, J. and
Meuffels, P. and Brückel, T.},
title = {{C}rystal and magnetic structure of single-crystal
{L}a1-x{S}rx{M}n{O}3 (x ~ 1/8)},
journal = {The European physical journal / B},
volume = {67},
issn = {1434-6028},
address = {Berlin},
publisher = {Springer},
reportid = {PreJuSER-3497},
pages = {149 - 157},
year = {2009},
note = {Record converted from VDB: 12.11.2012},
abstract = {A neutron powder diffraction (NPD) study on the crystal and
magnetic structure of a crushed La1-xSrxMnO3 (x approximate
to 1/8) single crystal has been performed. The sample
belongs to orthorhombic (Pnma, O) above the Jahn-Teller (JT)
transition temperature (T-JT) and monoclinic (P12(1)/c1, M')
in the JT regime. We have also refined the NPD data below
the charge/orbital ordering (CO/OO) temperature (T-CO/OO)
with a monoclinic (P12(1)/c1, M'') model because the
experimental resolution was insufficient to clearly identify
a triclinic (P (1) over bar) structure. The refined lattice
parameters show an obvious breathing-mode distortion between
T-CO/OO and T-JT, accompanied by a large deviation of the
monoclinic angle beta from 90 degrees, signifying a very
strong cooperative JT distortion. A ferromagnetic (FM)
moment of 3.43(5) mu(B)/Mn besides an A-type
antiferromagnetic (A-AFM) moment of 0.54(2) mu(B)/Mn is
directed mainly along the b axis in P12(1)/c1 symmetry at 5
K. With increasing temperature, the A-AFM domains transform
into FM ones above similar to 100 K and the FM spin
orientation turns from the b to the c axis in
crystallographic b-c plane below T-c = 187(1) K. The
magnetization measurements show typical anomalies around
T-CO/OO and T-JT. The measured saturation moment of 3.9(1)
mu(B)/Mn at 70 kOe and 5 K is well consistent with the sum
3.97(5) mu(B)/Mn of the refined FM and A-AFM moments at 5 K,
implying the A-AFM spins are aligned in field direction at
70 kOe. The applied magnetic field can affect the
paramagnetic insulating (PMI) state in the range of magnetic
polarons. Based on the size of JT distortion and the
bond-valence sums (BVS's), the CO/OO phenomenon is being
discussed.},
keywords = {J (WoSType)},
cin = {IFF-4 / IFF-5 / JARA-FIT / Jülich Centre for Neutron
Science JCNS (JCNS) ; JCNS / IFF-6},
ddc = {530},
cid = {I:(DE-Juel1)VDB784 / I:(DE-Juel1)VDB785 /
$I:(DE-82)080009_20140620$ / I:(DE-Juel1)JCNS-20121112 /
I:(DE-Juel1)VDB786},
pnm = {Kondensierte Materie / Großgeräte für die Forschung mit
Photonen, Neutronen und Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK414 / G:(DE-Juel1)FUEK415},
experiment = {EXP:(DE-MLZ)DNS-20140101 / EXP:(DE-MLZ)SPODI-20140101},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000263545600002},
doi = {10.1140/epjb/e2009-00019-5},
url = {https://juser.fz-juelich.de/record/3497},
}