CobaltMaghrebV1, France, Analysis, bibRecord, 000176

Magnetic properties and giant magnetoresistance in electrodeposited Co-Ag granular films

Identifieur interne : 000176 ( France/Analysis ); précédent : 000175; suivant : 000177

Magnetic 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.

RBID : Pascal:05-0498254

Descripteurs français

Pascal (Inist)
- Propriété magnétique, Magnétorésistance géante, Dépôt électrolytique, Structure granulaire, Phénomène transport, Superparamagnétisme, Composition chimique, Dimension particule, Diffraction RX, Aimantation, Hystérésis magnétique, Argent alliage, Cobalt alliage, Métal transition alliage, 7547D.

English descriptors

KwdEn :
- Chemical composition, Cobalt alloys, Electrodeposition, Giant magnetoresistance, Granular structure, Magnetic hysteresis, Magnetic properties, Magnetization, Particle size, Silver alloys, Superparamagnetism, Transition element alloys, Transport processes, XRD.

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.

Affiliations:

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Pascal:05-0498254

Le document en format XML

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<series><title level="j" type="main">Journal of magnetism and magnetic materials</title>
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<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>
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<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>
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<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>
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Magnetic properties and giant magnetoresistance in electrodeposited Co-Ag granular films

Magnetic properties and giant magnetoresistance in electrodeposited Co-Ag granular films

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