CobaltMaghrebV1, France, Analysis, bibRecord, 000253

Giant magnetoresistance in Co-Ag granular films prepared by electrodeposition

Identifieur interne : 000253 ( France/Analysis ); précédent : 000252; suivant : 000254

Giant magnetoresistance in Co-Ag granular films prepared by electrodeposition

Auteurs : S. Kenane [France] ; E. Chainet [France] ; B. Nguyen [France] ; A. Kadri [Algérie] ; N. Benbrahim [Algérie] ; J. Voiron [France]

Source :

Electrochemistry communications [ 1388-2481 ] ; 2002.

RBID : Pascal:02-0230850

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Dépôt électrolytique, Réaction électrochimique, Cobalt Alliage, Argent Alliage, Alliage binaire, Codépôt, Matériau granulaire, Magnétorésistance géante, Superparamagnétisme, Propriété magnétique, Microbalance quartz, Effet température.

English descriptors

KwdEn :
- Binary alloy, Cobalt Alloys, Codeposition, Electrochemical reaction, Electrodeposition, Experimental study, Giant magnetoresistance, Granular material, Magnetic properties, Quartz microbalance, Silver Alloys, Superparamagnetism, Temperature effect.

Abstract

Preparation of granular magnetic Co-Ag films produced by pulsed electrodeposition from a chloride bath containing both cobalt ions and a low concentration of silver has been investigated. Deposition of cobalt on Ag is performed by a double pulse method. Combining in situ electrochemical and microgravimetric measurements, the kinetics of silver and cobalt reduction are presented. The thickness and deposition rates are monitored using an electrochemical quartz crystal microbalance (EQCM) during the growth of each material. Magnetic measurements have shown a superparamagnetic behavior in agreement with the existence of very small cobalt particles. Giant magnetoresistance (GMR) of ∼2% at room temperature is observed for the Co₅Ag₉₅ sample.

Affiliations:

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Pascal:02-0230850

Le document en format XML

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<series><title level="j" type="main">Electrochemistry communications</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Binary alloy</term>
<term>Cobalt Alloys</term>
<term>Codeposition</term>
<term>Electrochemical reaction</term>
<term>Electrodeposition</term>
<term>Experimental study</term>
<term>Giant magnetoresistance</term>
<term>Granular material</term>
<term>Magnetic properties</term>
<term>Quartz microbalance</term>
<term>Silver Alloys</term>
<term>Superparamagnetism</term>
<term>Temperature effect</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Dépôt électrolytique</term>
<term>Réaction électrochimique</term>
<term>Cobalt Alliage</term>
<term>Argent Alliage</term>
<term>Alliage binaire</term>
<term>Codépôt</term>
<term>Matériau granulaire</term>
<term>Magnétorésistance géante</term>
<term>Superparamagnétisme</term>
<term>Propriété magnétique</term>
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<front><div type="abstract" xml:lang="en">Preparation of granular magnetic Co-Ag films produced by pulsed electrodeposition from a chloride bath containing both cobalt ions and a low concentration of silver has been investigated. Deposition of cobalt on Ag is performed by a double pulse method. Combining in situ electrochemical and microgravimetric measurements, the kinetics of silver and cobalt reduction are presented. The thickness and deposition rates are monitored using an electrochemical quartz crystal microbalance (EQCM) during the growth of each material. Magnetic measurements have shown a superparamagnetic behavior in agreement with the existence of very small cobalt particles. Giant magnetoresistance (GMR) of ∼2% at room temperature is observed for the Co<sub>5</sub>
Ag<sub>95</sub>
 sample.</div>
</front>
</TEI>
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<name sortKey="Chainet, E" sort="Chainet, E" uniqKey="Chainet E" first="E." last="Chainet">E. Chainet</name>
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<name sortKey="Nguyen, B" sort="Nguyen, B" uniqKey="Nguyen B" first="B." last="Nguyen">B. Nguyen</name>
<name sortKey="Voiron, J" sort="Voiron, J" uniqKey="Voiron J" first="J." last="Voiron">J. Voiron</name>
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Giant magnetoresistance in Co-Ag granular films prepared by electrodeposition

Giant magnetoresistance in Co-Ag granular films prepared by electrodeposition

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri