CobaltMaghrebV1, France, Analysis, bibRecord, 000069

Magnetic Properties of Zn0.8(Fe0.1,Co0.1)O Diluted Magnetic Semiconductors: Experimental and Theoretical Investigation

Identifieur interne : 000069 ( France/Analysis ); précédent : 000068; suivant : 000070

Magnetic Properties of Zn0.8(Fe0.1,Co0.1)O Diluted Magnetic Semiconductors: Experimental and Theoretical Investigation

Auteurs : O. Mounkachi [Maroc] ; M. Boujnah [Maroc] ; H. Labrim [Maroc] ; M. Hamedoun [Maroc] ; A. Benyoussef [Maroc] ; A. El Kenz [Maroc] ; M. Loulidi [Maroc] ; B. Belhourma [Maroc] ; M. Bhihi [Maroc] ; E. K. Hlil [France]

Source :

Journal of superconductivity and novel magnetism [ 1557-1939 ] ; 2012.

RBID : Pascal:12-0316236

Descripteurs français

Pascal (Inist)
- Densité état électron, Diffraction RX, Microscopie électronique transmission, Cristallinité, Grosseur grain, Méthode fonctionnelle densité, Codopage, Addition fer, Hystérésis magnétique, Addition cobalt, Ferromagnétisme, Hydrogénation, Séparation phase, Semiconducteur semimagnétique, Oxyde de zinc, ZnO.

English descriptors

KwdEn :
- Cobalt additions, Codoping, Crystallinity, Density functional method, Electronic density of states, Ferromagnetism, Grain size, Hydrogenation, Iron additions, Magnetic hysteresis, Phase separation, Semimagnetic semiconductors, Transmission electron microscopy, XRD, Zinc oxide.

Abstract

Structural and magnetic properties of Zn_0.8(Fe_0.1, Co_0.1)O bulk diluted magnetic semiconductor have been investigated using X-ray diffraction (XRD) and magnetic measurements. TEM (Transmission Electron Microscopy) images confirmed the high crystallinity and grain size of Zn_0.8(Fe_0.1,Co_0.1)O powder, the samples were characterized by energy dispersive spectroscopy (EDS) to confirm the expected stoichiometry. This sample has been synthesized by co-precipitation route. The study of magnetization hysteresis loop measurements infers that the bulk sample of Zn_0.8(Fe_0.1,Co_0.1)O shows a well-defined hysteresis loop at T_c (200 K) temperature, which reflects its ferromagnetic behavior. Hydrogenation treatment was used for the control of phase separation. Based on first-principles spin-density functional calculations, using the Korringa-Kohn-Rostoker method (KKR) combined with the coherent potential approximation (CPA), the ferromagnetic state energy was calculated and compared with the local-moment-disordered (LMD) state energy. The mechanism of hybridization and interaction between magnetic ions in Zn_0.8(Fe_0.1,Co_0.1)O is also investigated.

Affiliations:

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Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Magnetic Properties of Zn<sub>0.8</sub>
(Fe<sub>0.1</sub>
,Co<sub>0.1</sub>
)O Diluted Magnetic Semiconductors: Experimental and Theoretical Investigation</title>
<author><name sortKey="Mounkachi, O" sort="Mounkachi, O" uniqKey="Mounkachi O" first="O." last="Mounkachi">O. Mounkachi</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Institute of Nanomaterials and Nanotechnology, MAScIR (Moroccan foundation for Advanced Science, Innovation and Research)</s1>
<s2>Rabat</s2>
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<sZ>1 aut.</sZ>
<sZ>4 aut.</sZ>
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<author><name sortKey="Boujnah, M" sort="Boujnah, M" uniqKey="Boujnah M" first="M." last="Boujnah">M. Boujnah</name>
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<author><name sortKey="Hamedoun, M" sort="Hamedoun, M" uniqKey="Hamedoun M" first="M." last="Hamedoun">M. Hamedoun</name>
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<author><name sortKey="Benyoussef, A" sort="Benyoussef, A" uniqKey="Benyoussef A" first="A." last="Benyoussef">A. Benyoussef</name>
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<sZ>1 aut.</sZ>
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<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Magnetisme et Physique des Hautes Energies, LMPHE (URAC 12), Departement de Physique, B.P. 1014, Faculty of Science, Universite Mohammed V-Agdal</s1>
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<author><name sortKey="El Kenz, A" sort="El Kenz, A" uniqKey="El Kenz A" first="A." last="El Kenz">A. El Kenz</name>
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<author><name sortKey="Loulidi, M" sort="Loulidi, M" uniqKey="Loulidi M" first="M." last="Loulidi">M. Loulidi</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Magnetisme et Physique des Hautes Energies, LMPHE (URAC 12), Departement de Physique, B.P. 1014, Faculty of Science, Universite Mohammed V-Agdal</s1>
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<author><name sortKey="Belhourma, B" sort="Belhourma, B" uniqKey="Belhourma B" first="B." last="Belhourma">B. Belhourma</name>
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</affiliation>
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<author><name sortKey="Bhihi, M" sort="Bhihi, M" uniqKey="Bhihi M" first="M." last="Bhihi">M. Bhihi</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire de Magnetisme et Physique des Hautes Energies, LMPHE (URAC 12), Departement de Physique, B.P. 1014, Faculty of Science, Universite Mohammed V-Agdal</s1>
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<placeName><settlement type="city">Rabat</settlement>
<region nuts="2">Rabat-Salé-Kénitra</region>
</placeName>
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</author>
<author><name sortKey="Hlil, E K" sort="Hlil, E K" uniqKey="Hlil E" first="E. K." last="Hlil">E. K. Hlil</name>
<affiliation wicri:level="3"><inist:fA14 i1="04"><s1>Institut Néel, CNRS-UJF, B.P. 166</s1>
<s2>38042 Grenoble</s2>
<s3>FRA</s3>
<sZ>10 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Auvergne-Rhône-Alpes</region>
<region type="old region" nuts="2">Rhône-Alpes</region>
<settlement type="city">Grenoble</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of superconductivity and novel magnetism</title>
<title level="j" type="abbreviated">J. supercond. nov. magn.</title>
<idno type="ISSN">1557-1939</idno>
<imprint><date when="2012">2012</date>
</imprint>
</series>
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<seriesStmt><title level="j" type="main">Journal of superconductivity and novel magnetism</title>
<title level="j" type="abbreviated">J. supercond. nov. magn.</title>
<idno type="ISSN">1557-1939</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cobalt additions</term>
<term>Codoping</term>
<term>Crystallinity</term>
<term>Density functional method</term>
<term>Electronic density of states</term>
<term>Ferromagnetism</term>
<term>Grain size</term>
<term>Hydrogenation</term>
<term>Iron additions</term>
<term>Magnetic hysteresis</term>
<term>Phase separation</term>
<term>Semimagnetic semiconductors</term>
<term>Transmission electron microscopy</term>
<term>XRD</term>
<term>Zinc oxide</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Densité état électron</term>
<term>Diffraction RX</term>
<term>Microscopie électronique transmission</term>
<term>Cristallinité</term>
<term>Grosseur grain</term>
<term>Méthode fonctionnelle densité</term>
<term>Codopage</term>
<term>Addition fer</term>
<term>Hystérésis magnétique</term>
<term>Addition cobalt</term>
<term>Ferromagnétisme</term>
<term>Hydrogénation</term>
<term>Séparation phase</term>
<term>Semiconducteur semimagnétique</term>
<term>Oxyde de zinc</term>
<term>ZnO</term>
</keywords>
</textClass>
</profileDesc>
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<front><div type="abstract" xml:lang="en">Structural and magnetic properties of Zn<sub>0.8</sub>
(Fe<sub>0.1</sub>
, Co<sub>0.1</sub>
)O bulk diluted magnetic semiconductor have been investigated using X-ray diffraction (XRD) and magnetic measurements. TEM (Transmission Electron Microscopy) images confirmed the high crystallinity and grain size of Zn<sub>0.8</sub>
(Fe<sub>0.1</sub>
,Co<sub>0.1</sub>
)O powder, the samples were characterized by energy dispersive spectroscopy (EDS) to confirm the expected stoichiometry. This sample has been synthesized by co-precipitation route. The study of magnetization hysteresis loop measurements infers that the bulk sample of Zn<sub>0.8</sub>
(Fe<sub>0.1</sub>
,Co<sub>0.1</sub>
)O shows a well-defined hysteresis loop at T<sub>c</sub>
 (200 K) temperature, which reflects its ferromagnetic behavior. Hydrogenation treatment was used for the control of phase separation. Based on first-principles spin-density functional calculations, using the Korringa-Kohn-Rostoker method (KKR) combined with the coherent potential approximation (CPA), the ferromagnetic state energy was calculated and compared with the local-moment-disordered (LMD) state energy. The mechanism of hybridization and interaction between magnetic ions in Zn<sub>0.8</sub>
(Fe<sub>0.1</sub>
,Co<sub>0.1</sub>
)O is also investigated.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>Maroc</li>
</country>
<region><li>Auvergne-Rhône-Alpes</li>
<li>Rabat-Salé-Kénitra</li>
<li>Rhône-Alpes</li>
</region>
<settlement><li>Grenoble</li>
<li>Rabat</li>
</settlement>
</list>
<tree><country name="Maroc"><region name="Rabat-Salé-Kénitra"><name sortKey="Mounkachi, O" sort="Mounkachi, O" uniqKey="Mounkachi O" first="O." last="Mounkachi">O. Mounkachi</name>
</region>
<name sortKey="Belhourma, B" sort="Belhourma, B" uniqKey="Belhourma B" first="B." last="Belhourma">B. Belhourma</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="Benyoussef, A" sort="Benyoussef, A" uniqKey="Benyoussef A" first="A." last="Benyoussef">A. Benyoussef</name>
<name sortKey="Bhihi, M" sort="Bhihi, M" uniqKey="Bhihi M" first="M." last="Bhihi">M. Bhihi</name>
<name sortKey="Boujnah, M" sort="Boujnah, M" uniqKey="Boujnah M" first="M." last="Boujnah">M. Boujnah</name>
<name sortKey="El Kenz, A" sort="El Kenz, A" uniqKey="El Kenz A" first="A." last="El Kenz">A. El Kenz</name>
<name sortKey="Hamedoun, M" sort="Hamedoun, M" uniqKey="Hamedoun M" first="M." last="Hamedoun">M. Hamedoun</name>
<name sortKey="Labrim, H" sort="Labrim, H" uniqKey="Labrim H" first="H." last="Labrim">H. Labrim</name>
<name sortKey="Loulidi, M" sort="Loulidi, M" uniqKey="Loulidi M" first="M." last="Loulidi">M. Loulidi</name>
</country>
<country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Hlil, E K" sort="Hlil, E K" uniqKey="Hlil E" first="E. K." last="Hlil">E. K. Hlil</name>
</region>
</country>
</tree>
</affiliations>
</record>

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	Serveur d'exploration sur le cobalt au Maghreb
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Magnetic Properties of Zn0.8(Fe0.1,Co0.1)O Diluted Magnetic Semiconductors: Experimental and Theoretical Investigation

Magnetic Properties of Zn0.8(Fe0.1,Co0.1)O Diluted Magnetic Semiconductors: Experimental and Theoretical Investigation

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