Magnetic layer composition effect on giant magnetoresistance in (NiFeCo/Cu) multilayers
Identifieur interne : 000146 ( Maroc/Analysis ); précédent : 000145; suivant : 000147Magnetic layer composition effect on giant magnetoresistance in (NiFeCo/Cu) multilayers
Auteurs : D. Meziane Mtalsi [Maroc] ; M. El Harfaoui [Maroc] ; A. Qachaou [Maroc] ; M. Faris [Maroc] ; J. Ben Youssef [France] ; H. Le Gall [France]Source :
- Physica status solidi. A. Applied research [ 0031-8965 ] ; 2001.
Descripteurs français
- Pascal (Inist)
- Magnétorésistance géante, Hystérésis magnétique, Diffraction RX, Oscillation, Interaction échange, Epaisseur, Equation Boltzmann, Equation transport, Effet composition, Couche interfaciale, Diffusion mutuelle, Théorie semiclassique, Cuivre, Nickel alliage, Fer alliage, Cobalt alliage, Alliage ternaire, Etude expérimentale, Cu, Alliage CoFeNi, Co Fe Ni, 7570P.
- Wicri :
- topic : Cuivre.
English descriptors
- KwdEn :
- Boltzmann equation, Cobalt alloys, Composition effect, Copper, Exchange interactions, Experimental study, Giant magnetoresistance, Interdiffusion, Interfacial layer, Iron alloys, Magnetic hysteresis, Nickel alloys, Oscillations, Semiclassical theory, Ternary alloys, Thickness, Transport equation, XRD.
Abstract
In this work, we present a study of the structural, magnetic and magnetotransport properties in magnetic multilayered structures (NiFeCo/Cu) at room temperature. The magnetic (m) and nonmagnetic (nm) layer thickness (tm, tnm) and the composition of the magnetic layer effect on the magnetoresistance (MR) have been investigated experimentally and discussed theoretically in the framework of the Johnson-Camley semiclassical approach, based on the Boltzmann transport equation. The observed MR ratio oscillates for the Cu layer thickness with an average period of 12 A and decreases from one system to another less rich in Co. The MR peak position depends on the magnetic layer composition. The materials become harder with increasing Co concentration.
Affiliations:
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Meziane" last="Mtalsi">D. Meziane Mtalsi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique de la Matière Condensée (LPMC), B.P 133</s1><s2>14000, Kénitra</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>14000, Kénitra</wicri:noRegion></affiliation></author><author><name sortKey="El Harfaoui, M" sort="El Harfaoui, M" uniqKey="El Harfaoui M" first="M." last="El Harfaoui">M. El Harfaoui</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique de la Matière Condensée (LPMC), B.P 133</s1><s2>14000, Kénitra</s2><s3>MAR</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Maroc</country><wicri:noRegion>14000, Kénitra</wicri:noRegion></affiliation></author><author><name sortKey="Qachaou, A" sort="Qachaou, A" uniqKey="Qachaou A" first="A." last="Qachaou">A. 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Applied research</title><title level="j" type="abbreviated">Phys. status solidi, A, Appl. res.</title><idno type="ISSN">0031-8965</idno><imprint><date when="2001">2001</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Physica status solidi. A. Applied research</title><title level="j" type="abbreviated">Phys. status solidi, A, Appl. res.</title><idno type="ISSN">0031-8965</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Boltzmann equation</term><term>Cobalt alloys</term><term>Composition effect</term><term>Copper</term><term>Exchange interactions</term><term>Experimental study</term><term>Giant magnetoresistance</term><term>Interdiffusion</term><term>Interfacial layer</term><term>Iron alloys</term><term>Magnetic hysteresis</term><term>Nickel alloys</term><term>Oscillations</term><term>Semiclassical theory</term><term>Ternary alloys</term><term>Thickness</term><term>Transport equation</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Magnétorésistance géante</term><term>Hystérésis magnétique</term><term>Diffraction RX</term><term>Oscillation</term><term>Interaction échange</term><term>Epaisseur</term><term>Equation Boltzmann</term><term>Equation transport</term><term>Effet composition</term><term>Couche interfaciale</term><term>Diffusion mutuelle</term><term>Théorie semiclassique</term><term>Cuivre</term><term>Nickel alliage</term><term>Fer alliage</term><term>Cobalt alliage</term><term>Alliage ternaire</term><term>Etude expérimentale</term><term>Cu</term><term>Alliage CoFeNi</term><term>Co Fe Ni</term><term>7570P</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Cuivre</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this work, we present a study of the structural, magnetic and magnetotransport properties in magnetic multilayered structures (NiFeCo/Cu) at room temperature. The magnetic (m) and nonmagnetic (nm) layer thickness (t<sub>m</sub>, t<sub>nm</sub>) and the composition of the magnetic layer effect on the magnetoresistance (MR) have been investigated experimentally and discussed theoretically in the framework of the Johnson-Camley semiclassical approach, based on the Boltzmann transport equation. The observed MR ratio oscillates for the Cu layer thickness with an average period of 12 A and decreases from one system to another less rich in Co. The MR peak position depends on the magnetic layer composition. The materials become harder with increasing Co concentration.</div></front></TEI><affiliations><list><country><li>France</li><li>Maroc</li></country></list><tree><country name="Maroc"><noRegion><name sortKey="Mtalsi, D Meziane" sort="Mtalsi, D Meziane" uniqKey="Mtalsi D" first="D. Meziane" last="Mtalsi">D. Meziane Mtalsi</name></noRegion><name sortKey="El Harfaoui, M" sort="El Harfaoui, M" uniqKey="El Harfaoui M" first="M." last="El Harfaoui">M. El Harfaoui</name><name sortKey="Faris, M" sort="Faris, M" uniqKey="Faris M" first="M." last="Faris">M. Faris</name><name sortKey="Qachaou, A" sort="Qachaou, A" uniqKey="Qachaou A" first="A." last="Qachaou">A. Qachaou</name></country><country name="France"><noRegion><name sortKey="Ben Youssef, J" sort="Ben Youssef, J" uniqKey="Ben Youssef J" first="J." last="Ben Youssef">J. Ben Youssef</name></noRegion><name sortKey="Le Gall, H" sort="Le Gall, H" uniqKey="Le Gall H" first="H." last="Le Gall">H. Le Gall</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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