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@ARTICLE{Riegg:170224,
author = {Riegg, S. and Garcia-Garcia, F. J. and Reller, A. and
Loidl, A. and Ebbinghaus, Stefan},
title = {{S}ynthesis, crystal structure, and valence states of
{M}n-substituted ${L}a_{2}{R}u{O}_{5}$},
journal = {Physical review / B},
volume = {90},
number = {2},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {DESY-2014-03036},
pages = {024406},
year = {2014},
abstract = {Polycrystalline samples of layered perovskite-related
La2Ru1−yMnyO5 (0≤y≤0.25) were prepared by a
soft-chemistry synthesis based on the thermal decomposition
of a citrate precursor. The crystal structures of the
compounds were determined by Rietveld analysis of x-ray
diffraction patterns recorded at different temperatures.
Additional neutron diffraction patterns for
La2Ru0.75Mn0.25O5 were recorded between 1.5 K and 300 K. A
structural phase transition from a monoclinic
room-temperature to a triclinic low-temperature phase was
observed for y≤0.20, while for y=0.25 a phase separation
at low temperatures was identified. The structural
phase-transition temperatures decrease with increasing Mn
concentration. Selected area electron diffraction of
La2Ru0.75Mn0.25O5 documented the absence of cationic
ordering of Ru and Mn. The Mn and Ru oxidation states were
determined using x-ray absorption spectroscopy and showed a
stable +4 valence for both elements in all samples
investigated, at room temperature as well as at 110 K.},
cin = {DOOR},
ddc = {530},
cid = {I:(DE-H253)HAS-User-20120731},
pnm = {DORIS Beamline B2 (POF2-54G13) / DORIS Beamline A1
(POF2-54G13)},
pid = {G:(DE-H253)POF2-B2-20130405 / G:(DE-H253)POF2-A1-20130405},
experiment = {EXP:(DE-H253)D-B2-20150101 / EXP:(DE-H253)D-A1-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000339444300002},
doi = {10.1103/PhysRevB.90.024406},
url = {https://bib-pubdb1.desy.de/record/170224},
}