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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F14%3A00435980%21RIV15-AV0-68378271
rdf:type
n7:Vysledek skos:Concept
dcterms:description
The intermetalliccompoundMnFe4Si3 has been studied by high-resolution Time of Flight(TOF)neutron powder diffraction. MnFe4Si3 crystallizes in the hexagonal space group P63/mcm with lattice constants of a=b=6.8043(4)Å and c=4.7254(2) Å at 310K. Magnetic susceptibility measurements show clearly the magnetic transition from paramagnetism to ferromagnetism at about 302(2)K. Magnetic structure refinements based on neutron powder diffraction data with and without external magnetic field reveal strong evidence on the origin of the large magnetocaloric effect(MCE)in this material as a partial reordering of the spins between 270K and 300K. In addition, electronic structure calculations using the self-consistent, spin-polarized Tight Binding-Linear MuffinTin Orbital method were also accomplished to address the “coloring problem (Mn/Fe site preference)as well as the unique ferromagnetic behavior of this intermetallic compound. The intermetalliccompoundMnFe4Si3 has been studied by high-resolution Time of Flight(TOF)neutron powder diffraction. MnFe4Si3 crystallizes in the hexagonal space group P63/mcm with lattice constants of a=b=6.8043(4)Å and c=4.7254(2) Å at 310K. Magnetic susceptibility measurements show clearly the magnetic transition from paramagnetism to ferromagnetism at about 302(2)K. Magnetic structure refinements based on neutron powder diffraction data with and without external magnetic field reveal strong evidence on the origin of the large magnetocaloric effect(MCE)in this material as a partial reordering of the spins between 270K and 300K. In addition, electronic structure calculations using the self-consistent, spin-polarized Tight Binding-Linear MuffinTin Orbital method were also accomplished to address the “coloring problem (Mn/Fe site preference)as well as the unique ferromagnetic behavior of this intermetallic compound.
dcterms:title
Toward a better understanding of the magnetocaloric effect: An experimental and theoretical study of MnFe4Si3. Toward a better understanding of the magnetocaloric effect: An experimental and theoretical study of MnFe4Si3.
skos:prefLabel
Toward a better understanding of the magnetocaloric effect: An experimental and theoretical study of MnFe4Si3. Toward a better understanding of the magnetocaloric effect: An experimental and theoretical study of MnFe4Si3.
skos:notation
RIV/68378271:_____/14:00435980!RIV15-AV0-68378271
n4:aktivita
n12:I
n4:aktivity
I
n4:cisloPeriodika
AUG
n4:dodaniDat
n5:2015
n4:domaciTvurceVysledku
n9:6297102
n4:druhVysledku
n6:J
n4:duvernostUdaju
n13:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
50773
n4:idVysledku
RIV/68378271:_____/14:00435980
n4:jazykVysledku
n17:eng
n4:klicovaSlova
magneto caloric effect materials; intermetallic; silicide; magnetism; neutron diffraction; density functional theory
n4:klicoveSlovo
n8:neutron%20diffraction n8:magnetism n8:intermetallic n8:silicide n8:magneto%20caloric%20effect%20materials n8:density%20functional%20theory
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[F9AEBDDE4511]
n4:nazevZdroje
Journal of Solid State Chemistry
n4:obor
n14:BM
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
7
n4:rokUplatneniVysledku
n5:2014
n4:svazekPeriodika
216
n4:tvurceVysledku
Petříček, Václav Gottschlich, G. de la Cruz, C. Bruckel, T. Gourdon, O. Persson, J. McGuire, M. A.
n4:wos
000338177100009
s:issn
0022-4596
s:numberOfPages
9
n11:doi
10.1016/j.jssc.2014.05.001