Magnetic properties and phase diagram of ZnxNi1-xFe2O4: High-temperature series expansions
Identifieur interne : 000417 ( Main/Exploration ); précédent : 000416; suivant : 000418Magnetic properties and phase diagram of ZnxNi1-xFe2O4: High-temperature series expansions
Auteurs : M. Hamedoun [Maroc] ; A. Benyoussef [Maroc] ; M. Bousmina [Maroc]Source :
- Journal of magnetism and magnetic materials [ 0304-8853 ] ; 2010.
Descripteurs français
- Pascal (Inist)
- Susceptibilité magnétique, Fonction corrélation, Composition chimique, Développement série, Approximation champ moyen, Approximation Padé, Diagramme phase magnétique, Interaction superéchange, Effet Mössbauer, Loi Curie Weiss, Point Curie, Exposant critique, Fer Nickel Zinc Oxyde Mixte, Ferrites spinelles, Matériau paramagnétique, Ferrite de nickel et de zinc.
English descriptors
- KwdEn :
- Chemical composition, Correlation functions, Critical exponents, Curie point, Curie-Weiss law, Ferrites spinels, Iron Nickel Zinc Oxides Mixed, Magnetic susceptibility, Magnetic-phase diagrams, Mean field approximation, Moessbauer effect, Padé approximation, Paramagnetic materials, Series expansion, Superexchange interactions.
Abstract
Using mean field theory and high-temperature series expansions (HTSEs), extrapolated with the Padé approximants method, the effect of Zn doping on magnetic properties of NiFe2O4 ferrite spinel has been studied. The nearest neighbour super-exchange interactions for intra-site (JAA,JBB) and inter-site (JAB) of the ZnxNi1-xFe2O4 ferrites spinels, in the range 0 ≤ x ≤ 1, have been computed using the probability approach, based on Mössbauer data. The paramagnetic Curie-Weiss temperature 0 and the Curie temperature TC are calculated as a function of Zn concentration. The critical exponent γ associated with magnetic susceptibility is calculated. The spin correlation functions intra-plane and inter-plane have been also computed and compared with exchange couplings. The obtained theoretical results are in good agreement with experimental ones obtained by magnetic measurements and Mössbauer spectroscopy.
Affiliations:
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Hamedoun</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>INANOTECH (Institute of Nanomaterials and Nanotechnology)</s1><s2>Rabat</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation></author><author><name sortKey="Benyoussef, A" sort="Benyoussef, A" uniqKey="Benyoussef A" first="A." last="Benyoussef">A. Benyoussef</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>INANOTECH (Institute of Nanomaterials and Nanotechnology)</s1><s2>Rabat</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Hassan II Academy of Sciences and Technology</s1><s2>Rabat</s2><s3>MAR</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation><affiliation wicri:level="3"><inist:fA14 i1="03"><s1>LMPHE, Faculté des Sciences, Université Mohammed V</s1><s2>Rabat</s2><s3>MAR</s3><sZ>2 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation></author><author><name sortKey="Bousmina, M" sort="Bousmina, M" uniqKey="Bousmina M" first="M." last="Bousmina">M. Bousmina</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>INANOTECH (Institute of Nanomaterials and Nanotechnology)</s1><s2>Rabat</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Hassan II Academy of Sciences and Technology</s1><s2>Rabat</s2><s3>MAR</s3><sZ>2 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Maroc</country><placeName><settlement type="city">Rabat</settlement><region nuts="2">Rabat-Salé-Kénitra</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Journal of magnetism and magnetic materials</title><title level="j" type="abbreviated">J. magn. magn. mater.</title><idno type="ISSN">0304-8853</idno><imprint><date when="2010">2010</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of magnetism and magnetic materials</title><title level="j" type="abbreviated">J. magn. magn. mater.</title><idno type="ISSN">0304-8853</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chemical composition</term><term>Correlation functions</term><term>Critical exponents</term><term>Curie point</term><term>Curie-Weiss law</term><term>Ferrites spinels</term><term>Iron Nickel Zinc Oxides Mixed</term><term>Magnetic susceptibility</term><term>Magnetic-phase diagrams</term><term>Mean field approximation</term><term>Moessbauer effect</term><term>Padé approximation</term><term>Paramagnetic materials</term><term>Series expansion</term><term>Superexchange interactions</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Susceptibilité magnétique</term><term>Fonction corrélation</term><term>Composition chimique</term><term>Développement série</term><term>Approximation champ moyen</term><term>Approximation Padé</term><term>Diagramme phase magnétique</term><term>Interaction superéchange</term><term>Effet Mössbauer</term><term>Loi Curie Weiss</term><term>Point Curie</term><term>Exposant critique</term><term>Fer Nickel Zinc Oxyde Mixte</term><term>Ferrites spinelles</term><term>Matériau paramagnétique</term><term>Ferrite de nickel et de zinc</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Using mean field theory and high-temperature series expansions (HTSEs), extrapolated with the Padé approximants method, the effect of Zn doping on magnetic properties of NiFe<sub>2</sub>O<sub>4</sub> ferrite spinel has been studied. The nearest neighbour super-exchange interactions for intra-site (J<sub>AA</sub>,J<sub>BB</sub>) and inter-site (J<sub>AB</sub>) of the Zn<sub>x</sub>Ni<sub>1-x</sub>Fe<sub>2</sub>O<sub>4</sub> ferrites spinels, in the range 0 ≤ x ≤ 1, have been computed using the probability approach, based on Mössbauer data. The paramagnetic Curie-Weiss temperature 0 and the Curie temperature T<sub>C</sub> are calculated as a function of Zn concentration. The critical exponent γ associated with magnetic susceptibility is calculated. The spin correlation functions intra-plane and inter-plane have been also computed and compared with exchange couplings. The obtained theoretical results are in good agreement with experimental ones obtained by magnetic measurements and Mössbauer spectroscopy.</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"><region name="Rabat-Salé-Kénitra"><name sortKey="Hamedoun, M" sort="Hamedoun, M" uniqKey="Hamedoun M" first="M." last="Hamedoun">M. Hamedoun</name></region><name sortKey="Benyoussef, A" sort="Benyoussef, A" uniqKey="Benyoussef A" first="A." last="Benyoussef">A. Benyoussef</name><name sortKey="Benyoussef, A" sort="Benyoussef, A" uniqKey="Benyoussef A" first="A." last="Benyoussef">A. Benyoussef</name><name sortKey="Benyoussef, A" sort="Benyoussef, A" uniqKey="Benyoussef A" first="A." last="Benyoussef">A. Benyoussef</name><name sortKey="Bousmina, M" sort="Bousmina, M" uniqKey="Bousmina M" first="M." last="Bousmina">M. Bousmina</name><name sortKey="Bousmina, M" sort="Bousmina, M" uniqKey="Bousmina M" first="M." last="Bousmina">M. Bousmina</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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