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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F11%3A10103816%21RIV12-MSM-11320___
rdf:type
skos:Concept n7:Vysledek
rdfs:seeAlso
http://iopscience.iop.org/0953-8984/23/7/076001/
dcterms:description
UNiGa crystallizes in the hexagonal ZrNiAl structure and orders antiferromagnetically below T(N) = 39.3 K with the U moments oriented along the c-axis (easy magnetization axis). There are four different antiferromagnetic phases in zero magnetic field and two field induced magnetic phases in UNiGa. For all of them, a strong uniaxial anisotropy is encountered. All the magnetic phases are described by propagation vectors of (0 0 q(i))-type, where q(i) describes the stacking of the ferromagnetic basal planes along the hexagonal c-axis. However, recently (0 0 L)-type Bragg reflections associated with the magnetic ordering have been observed by neutron diffraction. Based on unpolarized and polarized neutron diffraction and non-resonant and resonant synchrotron x-ray scattering experiments combined with polarization analysis we conclude that small amounts of magnetic moments oriented perpendicular to the c-axis exist in UNiGa. Whether these moments reside on Ni atoms outside the U-Ni planes or at interstitial regions could not be determined. UNiGa crystallizes in the hexagonal ZrNiAl structure and orders antiferromagnetically below T(N) = 39.3 K with the U moments oriented along the c-axis (easy magnetization axis). There are four different antiferromagnetic phases in zero magnetic field and two field induced magnetic phases in UNiGa. For all of them, a strong uniaxial anisotropy is encountered. All the magnetic phases are described by propagation vectors of (0 0 q(i))-type, where q(i) describes the stacking of the ferromagnetic basal planes along the hexagonal c-axis. However, recently (0 0 L)-type Bragg reflections associated with the magnetic ordering have been observed by neutron diffraction. Based on unpolarized and polarized neutron diffraction and non-resonant and resonant synchrotron x-ray scattering experiments combined with polarization analysis we conclude that small amounts of magnetic moments oriented perpendicular to the c-axis exist in UNiGa. Whether these moments reside on Ni atoms outside the U-Ni planes or at interstitial regions could not be determined.
dcterms:title
Transverse magnetism in uniaxial antiferromagnet UNiGa Transverse magnetism in uniaxial antiferromagnet UNiGa
skos:prefLabel
Transverse magnetism in uniaxial antiferromagnet UNiGa Transverse magnetism in uniaxial antiferromagnet UNiGa
skos:notation
RIV/00216208:11320/11:10103816!RIV12-MSM-11320___
n7:predkladatel
n8:orjk%3A11320
n3:aktivita
n13:Z
n3:aktivity
Z(MSM0021620834)
n3:cisloPeriodika
7
n3:dodaniDat
n15:2012
n3:domaciTvurceVysledku
n12:6586805
n3:druhVysledku
n6:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
235938
n3:idVysledku
RIV/00216208:11320/11:10103816
n3:jazykVysledku
n18:eng
n3:klicovaSlova
UNiGa; antiferromagnet; uniaxial; magnetism; Transverse
n3:klicoveSlovo
n4:uniaxial n4:UNiGa n4:Transverse n4:antiferromagnet n4:magnetism
n3:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n3:kontrolniKodProRIV
[E196D03A5F83]
n3:nazevZdroje
Journal of Physics Condensed Matter
n3:obor
n19:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n15:2011
n3:svazekPeriodika
23
n3:tvurceVysledku
Mihalik, M. Dudzik, E. Feyerherm, R. Sechovský, Vladimír Prokeš, Karel
n3:wos
000286930200018
n3:zamer
n21:MSM0021620834
s:issn
0953-8984
s:numberOfPages
6
n17:doi
10.1088/0953-8984/23/7/076001
n16:organizacniJednotka
11320