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@ARTICLE{Li:19306,
author = {Li, H. and Yan, J.-Q. and Kim, J. W. and McCallum, R. W.
and Lograsso, T. A. and Vaknin, D.},
title = {{A}nisotropic magnetoelastic coupling in single-crystalline
{C}e{F}e{A}s{O} as seen via high-resolution x-ray
diffraction},
journal = {Physical review / B},
volume = {84},
number = {22},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-19306},
pages = {220501},
year = {2011},
note = {Research at Ames Laboratory is supported by the US
Department of Energy, Office of Basic Energy Sciences,
Division of Materials Sciences and Engineering under
Contract No. DE-AC02-07CH11358. Use of the Advanced Photon
Source at Argonne National Laboratory was supported by the
US Department of Energy, Office of Science, Office of Basic
Energy Sciences, under Contract No. DE-AC02-06CH11357.},
abstract = {Single-crystal synchrotron x-ray diffraction studies of
CeFeAsO reveal strong anisotropy in the charge-correlation
lengths along or perpendicular to the in-plane
antiferromagnetic (AFM) wave vector at low temperatures,
indicating an anisotropic two-dimensional magnetoelastic
coupling. The high-resolution setup allows to distinctly
monitor each of the twin domains by virtue of a finite
misfit angle between them that follows the order parameter.
In addition, we find that the in-plane correlations, above
the orthorhombic (O)-to-tetragonal (T) transition, are
shorter than those in each of the domains in the AFM phase,
indicating a distribution of the in-plane lattice constants.
This strongly suggests that the phase above the structural
O-to-T transition is virtually T with strong O-T
fluctuations that are probably induced by spin
fluctuations.},
keywords = {J (WoSType)},
cin = {PGI-4 / JCNS-2 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)PGI-4-20110106 / I:(DE-Juel1)JCNS-2-20110106 /
$I:(DE-82)080009_20140620$},
pnm = {Grundlagen für zukünftige Informationstechnologien /
Großgeräte für die Forschung mit Photonen, Neutronen und
Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000297549700002},
doi = {10.1103/PhysRevB.84.220501},
url = {https://juser.fz-juelich.de/record/19306},
}