Effects of bulk and interface scattering on giant magnetoresistance in the Co/Cu multilayer systems
Identifieur interne : 000641 ( Main/Exploration ); précédent : 000640; suivant : 000642Effects of bulk and interface scattering on giant magnetoresistance in the Co/Cu multilayer systems
Auteurs : B. Elsafi [Tunisie] ; F. Trigui [Tunisie] ; Z. Fakhfakh [Tunisie]Source :
- Computational materials science [ 0927-0256 ] ; 2010.
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English descriptors
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Abstract
The evolution of the giant magnetoresistance (GMR) effect in thin film multilayers based on (Co/Cu)n has been investigated by using semi-classical approach of the two spin channel currents developed by Hood, Falicov and Penn. The in plane MR of Co/Cu multilayers is calculated for correlated quasiperiodic interfaces. The numerical results show important influence of interface roughness on the behaviour of MR. The variation of MR with phenomenological parameters S↑ and S↓ for two directions of spin and relaxation time is reported. This interface roughness has been successfully included in our GMR simulation using a semi-classical description to analyse the experimental results giving the variation of MR with the thickness of the copper interlayer.
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cobalt</term>
<term>Copper</term>
<term>Giant magnetoresistance</term>
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<term>Phenomenological model</term>
<term>Relaxation time</term>
<term>Roughness</term>
<term>Semiclassical theory</term>
<term>Thickness</term>
<term>Thin films</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Magnétorésistance géante</term>
<term>Théorie semiclassique</term>
<term>Rugosité</term>
<term>Modèle phénoménologique</term>
<term>Temps relaxation</term>
<term>Epaisseur</term>
<term>Cuivre</term>
<term>Multicouche</term>
<term>Couche mince</term>
<term>Cobalt</term>
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<term>Cobalt</term>
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<front><div type="abstract" xml:lang="en">The evolution of the giant magnetoresistance (GMR) effect in thin film multilayers based on (Co/Cu)<sub>n</sub>
has been investigated by using semi-classical approach of the two spin channel currents developed by Hood, Falicov and Penn. The in plane MR of Co/Cu multilayers is calculated for correlated quasiperiodic interfaces. The numerical results show important influence of interface roughness on the behaviour of MR. The variation of MR with phenomenological parameters S↑ and S↓ for two directions of spin and relaxation time is reported. This interface roughness has been successfully included in our GMR simulation using a semi-classical description to analyse the experimental results giving the variation of MR with the thickness of the copper interlayer.</div>
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