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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F12%3A10126219%21RIV13-GA0-11320___
rdf:type
n8:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1063/1.3679460
dcterms:description
Some of the RTX (R - rare earth, T - transition metal, X - p-metal element) including SmNiAl and SmPdAl, compounds crystallizing in the hexagonal ZrNiAl-type of structure exhibit a discontinuity in the temperature or composition dependence of the lattice parameters (a and c). This phenomenon is connected with some %22forbidden%22 c/a ratio values. Single crystals of SmNiAl and SmPdAl have been studied and found to undergo a second order structure phase transition in the vicinity of 500 K, characterized by a change of the temperature dependence of the c/a ratio. The transition is seen also in the change of the temperature dependence of the magnetic susceptibility near to 500 K. The second order type of the transition induces appearance of c/a falling into the forbidden range of values. The enhanced thermal movement at high temperatures causes possibility of the forbidden values. The low temperature specific heat, resistivity and magnetization data point to antiferromagnetism in SmPdAl and SmNiAl with T-N = 15.3 and 20.3 K, respectively. Various features of the specific magnetism of the Sm3+ ion, like strongly reduced magnetic moments, magnetocrystalline anisotropy, exotic (non-Curie-Weiss) temperature dependence of the paramagnetic susceptibility are presented and discussed. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679460] Some of the RTX (R - rare earth, T - transition metal, X - p-metal element) including SmNiAl and SmPdAl, compounds crystallizing in the hexagonal ZrNiAl-type of structure exhibit a discontinuity in the temperature or composition dependence of the lattice parameters (a and c). This phenomenon is connected with some %22forbidden%22 c/a ratio values. Single crystals of SmNiAl and SmPdAl have been studied and found to undergo a second order structure phase transition in the vicinity of 500 K, characterized by a change of the temperature dependence of the c/a ratio. The transition is seen also in the change of the temperature dependence of the magnetic susceptibility near to 500 K. The second order type of the transition induces appearance of c/a falling into the forbidden range of values. The enhanced thermal movement at high temperatures causes possibility of the forbidden values. The low temperature specific heat, resistivity and magnetization data point to antiferromagnetism in SmPdAl and SmNiAl with T-N = 15.3 and 20.3 K, respectively. Various features of the specific magnetism of the Sm3+ ion, like strongly reduced magnetic moments, magnetocrystalline anisotropy, exotic (non-Curie-Weiss) temperature dependence of the paramagnetic susceptibility are presented and discussed. (C) 2012 American Institute of Physics. [doi:10.1063/1.3679460]
dcterms:title
Structural and magnetic study of SmTAl single crystals (T=Pd and Ni) Structural and magnetic study of SmTAl single crystals (T=Pd and Ni)
skos:prefLabel
Structural and magnetic study of SmTAl single crystals (T=Pd and Ni) Structural and magnetic study of SmTAl single crystals (T=Pd and Ni)
skos:notation
RIV/00216208:11320/12:10126219!RIV13-GA0-11320___
n8:predkladatel
n21:orjk%3A11320
n3:aktivita
n9:P n9:Z
n3:aktivity
P(GA202/09/1027), Z(MSM0021620834)
n3:cisloPeriodika
7
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n6:5009146 n6:6586805 n6:2407396 n6:2027542 n6:9896236 n6:4458184
n3:druhVysledku
n12:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
171798
n3:idVysledku
RIV/00216208:11320/12:10126219
n3:jazykVysledku
n22:eng
n3:klicovaSlova
er; series; isostructural phase-transition
n3:klicoveSlovo
n4:isostructural%20phase-transition n4:er n4:series
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[07072A3A8A15]
n3:nazevZdroje
Journal of Applied Physics
n3:obor
n17:BM
n3:pocetDomacichTvurcuVysledku
6
n3:pocetTvurcuVysledku
7
n3:projekt
n18:GA202%2F09%2F1027
n3:rokUplatneniVysledku
n14:2012
n3:svazekPeriodika
111
n3:tvurceVysledku
Rusňák, Martin Matěj, Zdeněk Doenni, Andreas Pospíšil, Jiří Valeš, Václav Sechovský, Vladimír Prchal, Jiří
n3:wos
000303282401259
n3:zamer
n11:MSM0021620834
s:issn
0021-8979
s:numberOfPages
3
n16:doi
10.1063/1.3679460
n19:organizacniJednotka
11320