Magnetic properties and exchange interactions in T100-xErx amorphous alloys (T = Fe, co)
Identifieur interne : 000E47 ( Main/Merge ); précédent : 000E46; suivant : 000E48Magnetic properties and exchange interactions in T100-xErx amorphous alloys (T = Fe, co)
Auteurs : J. Benjelloun [Maroc] ; H. Oukris [Maroc] ; M. Abid [Maroc] ; M. Omri [Maroc] ; A. Itri [Maroc]Source :
- Materials letters : (General ed.) [ 0167-577X ] ; 1999.
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- Pascal (Inist)
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Abstract
Amorphous T100-xErx (with T = Fe, Co and 6 < x < 30) thin films were prepared by RF sputtering and their magnetic properties have been studied. A mean field model has been used to explain a temperature dependence of the magnetization. This analysis yields the spin values of T and the effective exchange interaction between T-T and T-Er atoms. High-field magnetization studies performed at 4.2 K in magnetic fields up to 5.5 tesla on amorphous T100-xErx alloys have revealed for samples with stoichiometry close to that of compensated ferrimagnet, a magnetic behavior that is characteristic of a non collinear magnetic structure of Er and T sublattices.
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Er<sub>x</sub>
amorphous alloys (T = Fe, co)</title>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Magnetic properties and exchange interactions in T<sub>100-x</sub>
Er<sub>x</sub>
amorphous alloys (T = Fe, co)</title>
<author><name sortKey="Benjelloun, J" sort="Benjelloun, J" uniqKey="Benjelloun J" first="J." last="Benjelloun">J. Benjelloun</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des Matériaux et de Microélectronique, Université Hassan II, Faculté des Sciences Aïn Chock. Mâarif, B.P. 5366. Route d'El Jadida, Km 8</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<wicri:noRegion>Casablanca</wicri:noRegion>
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<author><name sortKey="Oukris, H" sort="Oukris, H" uniqKey="Oukris H" first="H." last="Oukris">H. Oukris</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des Matériaux et de Microélectronique, Université Hassan II, Faculté des Sciences Aïn Chock. Mâarif, B.P. 5366. Route d'El Jadida, Km 8</s1>
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<country>Maroc</country>
<wicri:noRegion>Casablanca</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Abid, M" sort="Abid, M" uniqKey="Abid M" first="M." last="Abid">M. Abid</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des Matériaux et de Microélectronique, Université Hassan II, Faculté des Sciences Aïn Chock. Mâarif, B.P. 5366. Route d'El Jadida, Km 8</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
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<sZ>4 aut.</sZ>
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<wicri:noRegion>Casablanca</wicri:noRegion>
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<author><name sortKey="Omri, M" sort="Omri, M" uniqKey="Omri M" first="M." last="Omri">M. Omri</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des Matériaux et de Microélectronique, Université Hassan II, Faculté des Sciences Aïn Chock. Mâarif, B.P. 5366. Route d'El Jadida, Km 8</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<wicri:noRegion>Casablanca</wicri:noRegion>
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<author><name sortKey="Itri, A" sort="Itri, A" uniqKey="Itri A" first="A." last="Itri">A. Itri</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Physique des Matériaux, Université Mohammed V, Faculté des Sciences. B.P. 1014.</s1>
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<series><title level="j" type="main">Materials letters : (General ed.)</title>
<title level="j" type="abbreviated">Mater. lett. : (Gen. ed.)</title>
<idno type="ISSN">0167-577X</idno>
<imprint><date when="1999">1999</date>
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<seriesStmt><title level="j" type="main">Materials letters : (General ed.)</title>
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</seriesStmt>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Amorphous state</term>
<term>Binary alloys</term>
<term>Cobalt alloys</term>
<term>Erbium alloys</term>
<term>Exchange interactions</term>
<term>Experimental study</term>
<term>Iron alloys</term>
<term>Magnetic-phase diagrams</term>
<term>Mean field approximation</term>
<term>Spontaneous magnetization</term>
<term>Temperature dependence</term>
<term>Thin films</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Interaction échange</term>
<term>Etat amorphe</term>
<term>Alliage binaire</term>
<term>Couche mince</term>
<term>Approximation champ moyen</term>
<term>Dépendance température</term>
<term>Aimantation spontanée</term>
<term>Fer alliage</term>
<term>Erbium alliage</term>
<term>Cobalt alliage</term>
<term>Diagramme phase magnétique</term>
<term>7530E</term>
<term>7560E</term>
<term>7550K</term>
<term>Alliage ErFe</term>
<term>Alliage CoEr</term>
<term>Co Er</term>
<term>Er Fe</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Amorphous T<sub>100-x</sub>
Er<sub>x</sub>
(with T = Fe, Co and 6 < x < 30) thin films were prepared by RF sputtering and their magnetic properties have been studied. A mean field model has been used to explain a temperature dependence of the magnetization. This analysis yields the spin values of T and the effective exchange interaction between T-T and T-Er atoms. High-field magnetization studies performed at 4.2 K in magnetic fields up to 5.5 tesla on amorphous T<sub>100-x</sub>
Er<sub>x</sub>
alloys have revealed for samples with stoichiometry close to that of compensated ferrimagnet, a magnetic behavior that is characteristic of a non collinear magnetic structure of Er and T sublattices.</div>
</front>
</TEI>
<affiliations><list><country><li>Maroc</li>
</country>
<region><li>Rabat-Salé-Kénitra</li>
</region>
<settlement><li>Rabat</li>
</settlement>
</list>
<tree><country name="Maroc"><noRegion><name sortKey="Benjelloun, J" sort="Benjelloun, J" uniqKey="Benjelloun J" first="J." last="Benjelloun">J. Benjelloun</name>
</noRegion>
<name sortKey="Abid, M" sort="Abid, M" uniqKey="Abid M" first="M." last="Abid">M. Abid</name>
<name sortKey="Itri, A" sort="Itri, A" uniqKey="Itri A" first="A." last="Itri">A. Itri</name>
<name sortKey="Omri, M" sort="Omri, M" uniqKey="Omri M" first="M." last="Omri">M. Omri</name>
<name sortKey="Oukris, H" sort="Oukris, H" uniqKey="Oukris H" first="H." last="Oukris">H. Oukris</name>
</country>
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