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Statements

Subject Item
n2:RIV%2F68378271%3A_____%2F14%3A00435794%21RIV15-AV0-68378271
rdf:type
n8:Vysledek skos:Concept
dcterms:description
At 320 K, the crystal structure of CeRuSn is commensurate with the related CeCoAl-type of structure by the doubling of the c lattice parameter. However, with lowering the temperature it becomes incommensurate with x and z position parameters at all three elemental sites being modulated as one moves along the c axis. The resulting crystal structure can be conveniently described within the superspace formalism in (3+1) dimensions. The modulation vector, after initially strong temperature dependence, approaches a value close to qnuc=(0,0,0.35). Below TN=2.8(1) K, CeRuSn orders antiferromagnetically with a propagation vector =(0,0,0.175), i.e. with the magnetic unit cell doubled along the caxis direction with respect to the incommensurate crystal structure. Ce moments appear to be nearly collinear, confined to the a–c plane, forming ferromagnetically coupled pairs. Their magnitudes are modulated between 0.11 and 0.95 B as one moves along the c axis. At 320 K, the crystal structure of CeRuSn is commensurate with the related CeCoAl-type of structure by the doubling of the c lattice parameter. However, with lowering the temperature it becomes incommensurate with x and z position parameters at all three elemental sites being modulated as one moves along the c axis. The resulting crystal structure can be conveniently described within the superspace formalism in (3+1) dimensions. The modulation vector, after initially strong temperature dependence, approaches a value close to qnuc=(0,0,0.35). Below TN=2.8(1) K, CeRuSn orders antiferromagnetically with a propagation vector =(0,0,0.175), i.e. with the magnetic unit cell doubled along the caxis direction with respect to the incommensurate crystal structure. Ce moments appear to be nearly collinear, confined to the a–c plane, forming ferromagnetically coupled pairs. Their magnitudes are modulated between 0.11 and 0.95 B as one moves along the c axis.
dcterms:title
(3+1)-dimensional crystal and antiferromagnetic structures in CeRuSn (3+1)-dimensional crystal and antiferromagnetic structures in CeRuSn
skos:prefLabel
(3+1)-dimensional crystal and antiferromagnetic structures in CeRuSn (3+1)-dimensional crystal and antiferromagnetic structures in CeRuSn
skos:notation
RIV/68378271:_____/14:00435794!RIV15-AV0-68378271
n3:aktivita
n17:I
n3:aktivity
I
n3:cisloPeriodika
12
n3:dodaniDat
n13:2015
n3:domaciTvurceVysledku
n12:6297102
n3:druhVysledku
n4:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
58274
n3:idVysledku
RIV/68378271:_____/14:00435794
n3:jazykVysledku
n6:eng
n3:klicovaSlova
CeRuSn; incommensurate crystal structure; AF order; neutron diffraction; phase transition
n3:klicoveSlovo
n9:phase%20transition n9:incommensurate%20crystal%20structure n9:CeRuSn n9:neutron%20diffraction n9:AF%20order
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[4EA1C6B161C7]
n3:nazevZdroje
Journal of Physics-Condensed Matter
n3:obor
n11:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
9
n3:rokUplatneniVysledku
n13:2014
n3:svazekPeriodika
26
n3:tvurceVysledku
Ressouche, E. Hoffmann, R.-D. Mydosh, J. A Huang, Y.-K. Hartwig, S. Pöttgen, R. Prokeš, K. Petříček, Václav Ouladdiaf, B.
n3:wos
000332658600001
s:issn
0953-8984
s:numberOfPages
6
n5:doi
10.1088/0953-8984/26/12/122201