Magnetic properties and giant magnetoresistance in electrodeposited Co-Ag granular films
Identifieur interne : 000165 ( PascalFrancis/Checkpoint ); précédent : 000164; suivant : 000166Magnetic properties and giant magnetoresistance in electrodeposited Co-Ag granular films
Auteurs : S. Kenane [France, Algérie] ; J. Voiron [France] ; N. Benbrahim [Algérie] ; E. Chainet [France] ; F. Robaut [France]Source :
- Journal of magnetism and magnetic materials [ 0304-8853 ] ; 2006.
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Abstract
Small cobalt particles embedded in a silver matrix have been prepared using the electrodeposition technique. The size of the clusters is controlled by the deposition potential and the Co growth time. Structural, magnetic and magneto-transport properties of Co-Ag samples have been investigated as a function of the Co concentration between 2 and 40 at% cobalt. Superparamagnetic behavior is evidenced for the low contents of cobalt while long-range magnetic order appears at higher Co concentrations. The particles size has been determined from magnetic properties and from the X-ray diffraction technique, and varies between 3.5 and 9 nm. Magnetoresistance passes through a maximum as a function of the cobalt concentration. A maximum of ∼4% GMR is obtained at room temperature while GMR reaches a value of 14% at 10 K.
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Kenane</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Laboratoire Louis Néel, CNRS, 25 Avenue des Martyrs, BP 166</s1><s2>38042 Grenoble</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 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><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire d'Electrochimie et de Physico-Chimie des Matériaux et des Interfaces, UMR 5631-INPG-CNRS, Domaine Universitaire, BP 75</s1><s2>38402 Saint Martin d'Hères</s2><s3>FRA</s3><sZ>1 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">Saint Martin d'Hères</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratoire de Matériaux, Electrochimie et Corrosion, Université Mouloud Mammeri</s1><s2>Tizi-Ouzou, 15000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Tizi-Ouzou, 15000</wicri:noRegion></affiliation></author><author><name sortKey="Voiron, J" sort="Voiron, J" uniqKey="Voiron J" first="J." last="Voiron">J. 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Kenane</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Laboratoire Louis Néel, CNRS, 25 Avenue des Martyrs, BP 166</s1><s2>38042 Grenoble</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 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><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire d'Electrochimie et de Physico-Chimie des Matériaux et des Interfaces, UMR 5631-INPG-CNRS, Domaine Universitaire, BP 75</s1><s2>38402 Saint Martin d'Hères</s2><s3>FRA</s3><sZ>1 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">Saint Martin d'Hères</settlement></placeName></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratoire de Matériaux, Electrochimie et Corrosion, Université Mouloud Mammeri</s1><s2>Tizi-Ouzou, 15000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Tizi-Ouzou, 15000</wicri:noRegion></affiliation></author><author><name sortKey="Voiron, J" sort="Voiron, J" uniqKey="Voiron J" first="J." last="Voiron">J. Voiron</name><affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Laboratoire Louis Néel, CNRS, 25 Avenue des Martyrs, BP 166</s1><s2>38042 Grenoble</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 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><author><name sortKey="Benbrahim, N" sort="Benbrahim, N" uniqKey="Benbrahim N" first="N." last="Benbrahim">N. Benbrahim</name><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratoire de Matériaux, Electrochimie et Corrosion, Université Mouloud Mammeri</s1><s2>Tizi-Ouzou, 15000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>Algérie</country><wicri:noRegion>Tizi-Ouzou, 15000</wicri:noRegion></affiliation></author><author><name sortKey="Chainet, E" sort="Chainet, E" uniqKey="Chainet E" first="E." last="Chainet">E. Chainet</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>CMTC, Consortium des Moyens Techniques communs de Grenoble</s1><s3>FRA</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>Consortium des Moyens Techniques communs de Grenoble</wicri:noRegion><wicri:noRegion>CMTC, Consortium des Moyens Techniques communs de Grenoble</wicri:noRegion></affiliation></author><author><name sortKey="Robaut, F" sort="Robaut, F" uniqKey="Robaut F" first="F." last="Robaut">F. Robaut</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>CMTC, Consortium des Moyens Techniques communs de Grenoble</s1><s3>FRA</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>Consortium des Moyens Techniques communs de Grenoble</wicri:noRegion><wicri:noRegion>CMTC, Consortium des Moyens Techniques communs de Grenoble</wicri:noRegion></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="2006">2006</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>Cobalt alloys</term><term>Electrodeposition</term><term>Giant magnetoresistance</term><term>Granular structure</term><term>Magnetic hysteresis</term><term>Magnetic properties</term><term>Magnetization</term><term>Particle size</term><term>Silver alloys</term><term>Superparamagnetism</term><term>Transition element alloys</term><term>Transport processes</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Propriété magnétique</term><term>Magnétorésistance géante</term><term>Dépôt électrolytique</term><term>Structure granulaire</term><term>Phénomène transport</term><term>Superparamagnétisme</term><term>Composition chimique</term><term>Dimension particule</term><term>Diffraction RX</term><term>Aimantation</term><term>Hystérésis magnétique</term><term>Argent alliage</term><term>Cobalt alliage</term><term>Métal transition alliage</term><term>7547D</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Small cobalt particles embedded in a silver matrix have been prepared using the electrodeposition technique. The size of the clusters is controlled by the deposition potential and the Co growth time. Structural, magnetic and magneto-transport properties of Co-Ag samples have been investigated as a function of the Co concentration between 2 and 40 at% cobalt. Superparamagnetic behavior is evidenced for the low contents of cobalt while long-range magnetic order appears at higher Co concentrations. The particles size has been determined from magnetic properties and from the X-ray diffraction technique, and varies between 3.5 and 9 nm. Magnetoresistance passes through a maximum as a function of the cobalt concentration. A maximum of ∼4% GMR is obtained at room temperature while GMR reaches a value of 14% at 10 K.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0304-8853</s0></fA01><fA02 i1="01"><s0>JMMMDC</s0></fA02><fA03 i2="1"><s0>J. magn. magn. mater.</s0></fA03><fA05><s2>297</s2></fA05><fA06><s2>2</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Magnetic properties and giant magnetoresistance in electrodeposited Co-Ag granular films</s1></fA08><fA11 i1="01" i2="1"><s1>KENANE (S.)</s1></fA11><fA11 i1="02" i2="1"><s1>VOIRON (J.)</s1></fA11><fA11 i1="03" i2="1"><s1>BENBRAHIM (N.)</s1></fA11><fA11 i1="04" i2="1"><s1>CHAINET (E.)</s1></fA11><fA11 i1="05" i2="1"><s1>ROBAUT (F.)</s1></fA11><fA14 i1="01"><s1>Laboratoire Louis Néel, CNRS, 25 Avenue des Martyrs, BP 166</s1><s2>38042 Grenoble</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ></fA14><fA14 i1="02"><s1>Laboratoire d'Electrochimie et de Physico-Chimie des Matériaux et des Interfaces, UMR 5631-INPG-CNRS, Domaine Universitaire, BP 75</s1><s2>38402 Saint Martin d'Hères</s2><s3>FRA</s3><sZ>1 aut.</sZ></fA14><fA14 i1="03"><s1>Laboratoire de Matériaux, Electrochimie et Corrosion, Université Mouloud Mammeri</s1><s2>Tizi-Ouzou, 15000</s2><s3>DZA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="04"><s1>CMTC, Consortium des Moyens Techniques communs de Grenoble</s1><s3>FRA</s3><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA20><s1>99-106</s1></fA20><fA21><s1>2006</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>17230</s2><s5>354000135500910060</s5></fA43><fA44><s0>0000</s0><s1>© 2005 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>26 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>05-0498254</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of magnetism and magnetic materials</s0></fA64><fA66 i1="01"><s0>NLD</s0></fA66><fC01 i1="01" l="ENG"><s0>Small cobalt particles embedded in a silver matrix have been prepared using the electrodeposition technique. The size of the clusters is controlled by the deposition potential and the Co growth time. Structural, magnetic and magneto-transport properties of Co-Ag samples have been investigated as a function of the Co concentration between 2 and 40 at% cobalt. Superparamagnetic behavior is evidenced for the low contents of cobalt while long-range magnetic order appears at higher Co concentrations. The particles size has been determined from magnetic properties and from the X-ray diffraction technique, and varies between 3.5 and 9 nm. 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Kenane</name></region><name sortKey="Chainet, E" sort="Chainet, E" uniqKey="Chainet E" first="E." last="Chainet">E. Chainet</name><name sortKey="Kenane, S" sort="Kenane, S" uniqKey="Kenane S" first="S." last="Kenane">S. Kenane</name><name sortKey="Robaut, F" sort="Robaut, F" uniqKey="Robaut F" first="F." last="Robaut">F. Robaut</name><name sortKey="Voiron, J" sort="Voiron, J" uniqKey="Voiron J" first="J." last="Voiron">J. Voiron</name></country><country name="Algérie"><noRegion><name sortKey="Kenane, S" sort="Kenane, S" uniqKey="Kenane S" first="S." last="Kenane">S. Kenane</name></noRegion><name sortKey="Benbrahim, N" sort="Benbrahim, N" uniqKey="Benbrahim N" first="N." last="Benbrahim">N. Benbrahim</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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