NickelMaghrebV1, Main, Exploration, bibRecord, 000A24

Magnetic susceptibility and spin exchange interactions of the hexagonal perovskite-type oxides Sr4/3(Mn2/3Ni1/3)O3

Identifieur interne : 000A24 ( Main/Exploration ); précédent : 000A23; suivant : 000A25

Magnetic susceptibility and spin exchange interactions of the hexagonal perovskite-type oxides Sr4/3(Mn2/3Ni1/3)O3

Auteurs : A. El Abed [France, Maroc] ; E. Gaudin [France] ; J. Darriet [France] ; M.-H. Whangbo [États-Unis]

Source :

Journal of solid state chemistry [ 0022-4596 ] ; 2002.

RBID : Pascal:02-0192325

Descripteurs français

Pascal (Inist)
- Susceptibilité magnétique, Interaction échange, Effet composition, Composition phase, Sous réseau, Dépendance température, Réseau hexagonal, Perovskites, Strontium oxyde, Manganèse oxyde, Nickel oxyde, Composé quaternaire, Etude expérimentale, Sr1,33(Mn0,67Ni0,33)O3, Mn Ni O Sr, 7530E.

English descriptors

KwdEn :
- Composition effect, Exchange interactions, Experimental study, Hexagonal lattices, Magnetic susceptibility, Manganese oxides, Nickel oxides, Perovskites, Phase composition, Quaternary compounds, Strontium oxides, Sublattices, Temperature dependence.

Abstract

Magnetic susceptibility measurements were carried out for two hexagonal perovskite-type oxides Sr_1+x(Mn_1-xNi_x)O₃ with slightly different compositions (i.e., x = 1/3 and 0.324). A significant difference in the susceptibilities of the two phases demonstrates the need to control phase compositions accurately. Sr_4/3(Mn_2/3Ni_1/3)O₃ consists of two spin sublattices, i.e., the Mn⁴⁺ and the Ni²⁺ ion sublattices. Spin dimer analysis was carried out to examine the relative strengths in the spin exchange interactions of the Mn⁴⁺ ion sublattice. The temperature dependence of the magnetic susceptibility of Sr_4/3(Mn_2/3Ni_1/3)O₃ was found consistent with a picture in which the Mn⁴⁺ ion sublattice has weakly interacting antiferromagnetically coupled (Mn⁴⁺)₂ dimers, the Ni²⁺ ion sublattice acts as a paramagnetic system, and the two sublattices are nearly independent.

Affiliations:

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Le document en format XML

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(Mn<sub>2/3</sub>
Ni<sub>1/3</sub>
)O<sub>3</sub>
</title>
<author><name sortKey="El Abed, A" sort="El Abed, A" uniqKey="El Abed A" first="A." last="El Abed">A. El Abed</name>
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<s2>33608 Pessac</s2>
<s3>FRA</s3>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Magnetic susceptibility and spin exchange interactions of the hexagonal perovskite-type oxides Sr<sub>4/3</sub>
(Mn<sub>2/3</sub>
Ni<sub>1/3</sub>
)O<sub>3</sub>
</title>
<author><name sortKey="El Abed, A" sort="El Abed, A" uniqKey="El Abed A" first="A." last="El Abed">A. El Abed</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB UPR 9048 CNRS), 87 Avenue du Dr. A. Schweitzer</s1>
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<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<country>France</country>
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<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Laboratoire de Physique du Solide, Faculté des Sciences, Université Mohamed 1er</s1>
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<s3>MAR</s3>
<sZ>1 aut.</sZ>
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<country>Maroc</country>
<wicri:noRegion>Oujda</wicri:noRegion>
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</author>
<author><name sortKey="Gaudin, E" sort="Gaudin, E" uniqKey="Gaudin E" first="E." last="Gaudin">E. Gaudin</name>
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<s2>33608 Pessac</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region>
<region type="old region" nuts="2">Aquitaine</region>
<settlement type="city">Pessac</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Darriet, J" sort="Darriet, J" uniqKey="Darriet J" first="J." last="Darriet">J. Darriet</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB UPR 9048 CNRS), 87 Avenue du Dr. A. Schweitzer</s1>
<s2>33608 Pessac</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region>
<region type="old region" nuts="2">Aquitaine</region>
<settlement type="city">Pessac</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Whangbo, M H" sort="Whangbo, M H" uniqKey="Whangbo M" first="M.-H." last="Whangbo">M.-H. Whangbo</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Department of Chemistry, North Carolina State University</s1>
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<sZ>4 aut.</sZ>
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<country>États-Unis</country>
<wicri:noRegion>Raleigh, North Carolina 27695-8204</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of solid state chemistry</title>
<title level="j" type="abbreviated">J. solid state chem.</title>
<idno type="ISSN">0022-4596</idno>
<imprint><date when="2002">2002</date>
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<seriesStmt><title level="j" type="main">Journal of solid state chemistry</title>
<title level="j" type="abbreviated">J. solid state chem.</title>
<idno type="ISSN">0022-4596</idno>
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</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Composition effect</term>
<term>Exchange interactions</term>
<term>Experimental study</term>
<term>Hexagonal lattices</term>
<term>Magnetic susceptibility</term>
<term>Manganese oxides</term>
<term>Nickel oxides</term>
<term>Perovskites</term>
<term>Phase composition</term>
<term>Quaternary compounds</term>
<term>Strontium oxides</term>
<term>Sublattices</term>
<term>Temperature dependence</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Susceptibilité magnétique</term>
<term>Interaction échange</term>
<term>Effet composition</term>
<term>Composition phase</term>
<term>Sous réseau</term>
<term>Dépendance température</term>
<term>Réseau hexagonal</term>
<term>Perovskites</term>
<term>Strontium oxyde</term>
<term>Manganèse oxyde</term>
<term>Nickel oxyde</term>
<term>Composé quaternaire</term>
<term>Etude expérimentale</term>
<term>Sr1,33(Mn0,67Ni0,33)O3</term>
<term>Mn Ni O Sr</term>
<term>7530E</term>
</keywords>
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<front><div type="abstract" xml:lang="en">Magnetic susceptibility measurements were carried out for two hexagonal perovskite-type oxides Sr<sub>1+x</sub>
(Mn<sub>1-x</sub>
Ni<sub>x</sub>
)O<sub>3</sub>
 with slightly different compositions (i.e., x = 1/3 and 0.324). A significant difference in the susceptibilities of the two phases demonstrates the need to control phase compositions accurately. Sr<sub>4/3</sub>
(Mn<sub>2/3</sub>
Ni<sub>1/3</sub>
)O<sub>3</sub>
 consists of two spin sublattices, i.e., the Mn<sup>4+</sup>
 and the Ni<sup>2+</sup>
 ion sublattices. Spin dimer analysis was carried out to examine the relative strengths in the spin exchange interactions of the Mn<sup>4+</sup>
 ion sublattice. The temperature dependence of the magnetic susceptibility of Sr<sub>4/3</sub>
(Mn<sub>2/3</sub>
Ni<sub>1/3</sub>
)O<sub>3</sub>
 was found consistent with a picture in which the Mn<sup>4+</sup>
 ion sublattice has weakly interacting antiferromagnetically coupled (Mn<sup>4+</sup>
)<sub>2</sub>
 dimers, the Ni<sup>2+</sup>
 ion sublattice acts as a paramagnetic system, and the two sublattices are nearly independent.</div>
</front>
</TEI>
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<li>Maroc</li>
<li>États-Unis</li>
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<country name="États-Unis"><noRegion><name sortKey="Whangbo, M H" sort="Whangbo, M H" uniqKey="Whangbo M" first="M.-H." last="Whangbo">M.-H. Whangbo</name>
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Magnetic susceptibility and spin exchange interactions of the hexagonal perovskite-type oxides Sr4/3(Mn2/3Ni1/3)O3

Magnetic susceptibility and spin exchange interactions of the hexagonal perovskite-type oxides Sr4/3(Mn2/3Ni1/3)O3

Source :

Descripteurs français

English descriptors

Abstract

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