CobaltMaghrebV1, France, Analysis, bibRecord, 000338

GMR versus interfacial roughness induced from different buffers in (Co/Cu) ML

Identifieur interne : 000338 ( France/Analysis ); précédent : 000337; suivant : 000339

GMR versus interfacial roughness induced from different buffers in (Co/Cu) ML

Auteurs : M. El Harfaoui [France] ; H. Le Gall [France] ; J. Ben Youssef [France] ; S. Pogossian [France] ; A. Thiaville [France] ; P. Gogol [France] ; A. Qachaou [Maroc] ; J. M. Desvignes [France]

Source :

Journal of magnetism and magnetic materials [ 0304-8853 ] ; 1999.

RBID : Pascal:99-0317962

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Magnétorésistance géante, Multicouche, Couche tampon, Relation structure propriété, Structure interface, Rugosité, Aimantation, Effet dimensionnel, Cobalt, Cuivre, Aluminium, Tantale, Chrome, Co, Cu, Al, Ta, 7570P, Cr.
Wicri :
- topic : Cobalt, Cuivre, Aluminium, Tantale, Chrome.

English descriptors

KwdEn :
- Aluminium, Buffer layer, Chromium, Cobalt, Copper, Experimental study, Giant magnetoresistance, Interface structure, Magnetization, Multilayers, Property structure relationship, Roughness, Size effect, Tantalum.

Abstract

The correlation between the giant magnetoresistance AR/R, at the first maximum of the oscillating thickness dependence of the magnetoresistance (MR), and the structural and magnetic parameters has been investigated in (Co/Cu) multilayers (ML) deposited by the unusual RF sputtering method. Different textures and interface roughnesses have been induced from magnetic (Fe, Co) and non-magnetic (Cu, Al, Ta, Cr) buffers. The MR is independent of the ML texture and grain size but presents a strong correlation with the interface as deduced from small and large angle XRD and AFM. In high roughness ML the evolution, under increasing applied field, of AR/R versus (M/M_s)² presents a strong deviation from a standard linear dependence. Such a deviation is attributed to the presence of Co granules in the Cu or/ and the buffer matrices when strong interface disorder is induced in the samples.

Affiliations:

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Pascal:99-0317962

Le document en format XML

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<term>Experimental study</term>
<term>Giant magnetoresistance</term>
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<term>Magnetization</term>
<term>Multilayers</term>
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<term>Relation structure propriété</term>
<term>Structure interface</term>
<term>Rugosité</term>
<term>Aimantation</term>
<term>Effet dimensionnel</term>
<term>Cobalt</term>
<term>Cuivre</term>
<term>Aluminium</term>
<term>Tantale</term>
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<front><div type="abstract" xml:lang="en">The correlation between the giant magnetoresistance AR/R, at the first maximum of the oscillating thickness dependence of the magnetoresistance (MR), and the structural and magnetic parameters has been investigated in (Co/Cu) multilayers (ML) deposited by the unusual RF sputtering method. Different textures and interface roughnesses have been induced from magnetic (Fe, Co) and non-magnetic (Cu, Al, Ta, Cr) buffers. The MR is independent of the ML texture and grain size but presents a strong correlation with the interface as deduced from small and large angle XRD and AFM. In high roughness ML the evolution, under increasing applied field, of AR/R versus (M/M<sub>s</sub>
)<sup>2</sup>
 presents a strong deviation from a standard linear dependence. Such a deviation is attributed to the presence of Co granules in the Cu or/ and the buffer matrices when strong interface disorder is induced in the samples.</div>
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GMR versus interfacial roughness induced from different buffers in (Co/Cu) ML

GMR versus interfacial roughness induced from different buffers in (Co/Cu) ML

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