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@ARTICLE{Hering:256615,
author = {Hering, Paul and Friese, Karen and Voigt, Jörg and
Persson, Jörg and Aliouane, Nadir and Grzechnik, Andrzej
and Senyshyn, Anatoliy and Brückel, Thomas},
title = {{S}tructure, {M}agnetism, and the {M}agnetocaloric {E}ffect
of {M}n{F}e$_{4}${S}i$_{3}$ {S}ingle {C}rystals and {P}owder
{S}amples},
journal = {Chemistry of materials},
volume = {27},
number = {20},
issn = {1520-5002},
address = {Washington, DC},
publisher = {American Chemical Society},
reportid = {FZJ-2015-06482},
pages = {7128 - 7136},
year = {2015},
abstract = {Magnetic and structural properties of high quality
magnetocaloric MnFe4Si3 single crystals are investigated
macroscopically and on an atomic scale. Refinements of
combined neutron and X-ray single crystal diffraction data
introduce a new structural model in space group P6
characterized by partial ordering of Mn and Fe into layers
perpendicular to c on one of the transition metal sites. A
second transition metal site is exclusively occupied by
iron. MnFe4Si3 has a phase transition to a ferromagnetically
ordered phase at approximately 300 K and displays a strong
anisotropy of the magnetization and the magnetocaloric
effect with the easy axis of magnetization in the a,b-plane.
This is confirmed by a refinement of the magnetic structure
in the magnetic spacegroup Pm′, which shows that the spins
on the sites with mixed occupancy of Mn and Fe are aligned
in the a,b-plane. A significant magnetic moment for the site
exclusively occupied by iron could not be refined. The
thermal evolution of the lattice parameters exhibits an
anisotropic behavior and clearly reflects the onset of
magnetic ordering. A comparison of the ordered moment and
the effective paramagnetic moment hints toward itinerant
magnetism in the system.},
cin = {JCNS-2 / PGI-4 / JARA-FIT / JCNS (München) ; Jülich
Centre for Neutron Science JCNS (München) ; JCNS-FRM-II},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
$I:(DE-82)080009_20140620$ /
I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {144 - Controlling Collective States (POF3-144) / 524 -
Controlling Collective States (POF3-524) / 6212 - Quantum
Condensed Matter: Magnetism, Superconductivity (POF3-621) /
6213 - Materials and Processes for Energy and Transport
Technologies (POF3-621) / 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)POF3-6213 /
G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)SPODI-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000363915000026},
doi = {10.1021/acs.chemmater.5b03123},
url = {https://juser.fz-juelich.de/record/256615},
}