CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000291

Magnetic and transport properties of ion beam sputtered CoxCu1-x granular alloys

Identifieur interne : 000291 ( PascalFrancis/Corpus ); précédent : 000290; suivant : 000292

Magnetic and transport properties of ion beam sputtered CoxCu1-x granular alloys

Auteurs : H. Errahmani ; A. Berrada ; G. Schmerber ; A. Dinia

Source :

Vacuum [ 0042-207X ] ; 2000.

RBID : Pascal:00-0215199

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Matériau granulaire, Cobalt alliage, Cuivre alliage, Pulvérisation faisceau ionique, Magnétorésistance géante, Recuit, Effet concentration, Aimantation saturation, Couche mince, Force coercitive, Diffraction RX, 7560E, 7530V, 7570P, Alliage CoCu, Co Cu.

English descriptors

KwdEn :
- Annealing, Cobalt alloys, Coercive force, Copper alloys, Experimental study, Giant magnetoresistance, Granular materials, Ion beam sputtering, Quantity ratio, Saturation magnetization, Thin films, XRD.

Abstract

We report on the transport and magnetic properties of Co_xCu₁-x metallic granular system, with 0.2 < x < 0.25. These samples have been prepared by ion beam sputtering at room temperature on glass substrate. Giant magnetoresistance (GMR) has been observed for all the concentrations studied with an average amplitude around 2% for the as-deposited samples at 300 K. The maximum value has been observed for the Co₂₁Cu₇₉ granular alloy. Above this Co concentration the MR decreases which is attributed to the start of the percolation mechanism. The annealing of Co₂₁Cu₇₉ granular alloy at 450°C leads to a strong increase of the MR to reach 16% after 2 h annealing. The variation of magnetic and transports properties with the Co concentration and annealing time is discussed.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A08	`01`	`1`	`ENG`	`@1 Magnetic and transport properties of ion beam sputtered Co_xCu_1-x granular alloys`
A11	`01`	`1`		`@1 ERRAHMANI (H.)`
A11	`02`	`1`		`@1 BERRADA (A.)`
A11	`03`	`1`		`@1 SCHMERBER (G.)`
A11	`04`	`1`		`@1 DINIA (A.)`
A14	`01`			`@1 Faculté des Sciences, B.P. 1014 @2 Rabat @3 MAR @Z 1 aut. @Z 2 aut.`
A14	`02`			`@1 IPCMS-GEMM (ULP, UMR 7504 du CNRS), 23 rue du Loess @2 67037 Strasbourg @3 FRA @Z 3 aut. @Z 4 aut.`
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A44				`@0 0000 @1 © 2000 INIST-CNRS. All rights reserved.`
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C01	`01`		`ENG`	@0 We report on the transport and magnetic properties of Co_xCu₁-x metallic granular system, with 0.2 < x < 0.25. These samples have been prepared by ion beam sputtering at room temperature on glass substrate. Giant magnetoresistance (GMR) has been observed for all the concentrations studied with an average amplitude around 2% for the as-deposited samples at 300 K. The maximum value has been observed for the Co₂₁Cu₇₉ granular alloy. Above this Co concentration the MR decreases which is attributed to the start of the percolation mechanism. The annealing of Co₂₁Cu₇₉ granular alloy at 450°C leads to a strong increase of the MR to reach 16% after 2 h annealing. The variation of magnetic and transports properties with the Co concentration and annealing time is discussed.
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C03	`08`	`3`	`FRE`	`@0 Effet concentration @5 08`
C03	`08`	`3`	`ENG`	`@0 Quantity ratio @5 08`
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C03	`11`	`3`	`ENG`	`@0 Coercive force @5 11`
C03	`12`	`3`	`FRE`	`@0 Diffraction RX @5 12`
C03	`12`	`3`	`ENG`	`@0 XRD @5 12`
C03	`13`	`3`	`FRE`	`@0 7560E @2 PAC @4 INC @5 56`
C03	`14`	`3`	`FRE`	`@0 7530V @2 PAC @4 INC @5 57`
C03	`15`	`3`	`FRE`	`@0 7570P @2 PAC @4 INC @5 58`
C03	`16`	`3`	`FRE`	`@0 Alliage CoCu @2 NK @4 INC @5 92`
C03	`17`	`3`	`FRE`	`@0 Co Cu @4 INC @5 93`
C07	`01`	`3`	`FRE`	`@0 Métal transition alliage @5 16`
C07	`01`	`3`	`ENG`	`@0 Transition element alloys @5 16`
N21				`@1 150`

Format Inist (serveur)

NO :	PASCAL 00-0215199 INIST
ET :	Magnetic and transport properties of ion beam sputtered Co_xCu_1-x granular alloys
AU :	ERRAHMANI (H.); BERRADA (A.); SCHMERBER (G.); DINIA (A.)
AF :	Faculté des Sciences, B.P. 1014/Rabat/Maroc (1 aut., 2 aut.); IPCMS-GEMM (ULP, UMR 7504 du CNRS), 23 rue du Loess/67037 Strasbourg/France (3 aut., 4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Vacuum; ISSN 0042-207X; Coden VACUAV; Royaume-Uni; Da. 2000; Vol. 56; No. 3; Pp. 221-226; Bibl. 23 ref.
LA :	Anglais
EA :	We report on the transport and magnetic properties of Co_xCu₁-x metallic granular system, with 0.2 < x < 0.25. These samples have been prepared by ion beam sputtering at room temperature on glass substrate. Giant magnetoresistance (GMR) has been observed for all the concentrations studied with an average amplitude around 2% for the as-deposited samples at 300 K. The maximum value has been observed for the Co₂₁Cu₇₉ granular alloy. Above this Co concentration the MR decreases which is attributed to the start of the percolation mechanism. The annealing of Co₂₁Cu₇₉ granular alloy at 450°C leads to a strong increase of the MR to reach 16% after 2 h annealing. The variation of magnetic and transports properties with the Co concentration and annealing time is discussed.
CC :	001B70E60E; 001B70E30V; 001B70E70P; 240
FD :	Etude expérimentale; Matériau granulaire; Cobalt alliage; Cuivre alliage; Pulvérisation faisceau ionique; Magnétorésistance géante; Recuit; Effet concentration; Aimantation saturation; Couche mince; Force coercitive; Diffraction RX; 7560E; 7530V; 7570P; Alliage CoCu; Co Cu
FG :	Métal transition alliage
ED :	Experimental study; Granular materials; Cobalt alloys; Copper alloys; Ion beam sputtering; Giant magnetoresistance; Annealing; Quantity ratio; Saturation magnetization; Thin films; Coercive force; XRD
EG :	Transition element alloys
SD :	Pulverización haz iónico; Imanación saturación
LO :	INIST-6762.354000086891930100
ID :	00-0215199

Links to Exploration step

Pascal:00-0215199

Le document en format XML

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<front><div type="abstract" xml:lang="en">We report on the transport and magnetic properties of Co<sub>x</sub>
Cu<sub>1</sub>
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Cu<sub>79</sub>
 granular alloy. Above this Co concentration the MR decreases which is attributed to the start of the percolation mechanism. The annealing of Co<sub>21</sub>
Cu<sub>79</sub>
 granular alloy at 450°C leads to a strong increase of the MR to reach 16% after 2 h annealing. The variation of magnetic and transports properties with the Co concentration and annealing time is discussed.</div>
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Cu<sub>79</sub>
 granular alloy. Above this Co concentration the MR decreases which is attributed to the start of the percolation mechanism. The annealing of Co<sub>21</sub>
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<s5>58</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>Alliage CoCu</s0>
<s2>NK</s2>
<s4>INC</s4>
<s5>92</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE"><s0>Co Cu</s0>
<s4>INC</s4>
<s5>93</s5>
</fC03>
<fC07 i1="01" i2="3" l="FRE"><s0>Métal transition alliage</s0>
<s5>16</s5>
</fC07>
<fC07 i1="01" i2="3" l="ENG"><s0>Transition element alloys</s0>
<s5>16</s5>
</fC07>
<fN21><s1>150</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 00-0215199 INIST</NO>
<ET>Magnetic and transport properties of ion beam sputtered Co<sub>x</sub>
Cu<sub>1-x</sub>
 granular alloys</ET>
<AU>ERRAHMANI (H.); BERRADA (A.); SCHMERBER (G.); DINIA (A.)</AU>
<AF>Faculté des Sciences, B.P. 1014/Rabat/Maroc (1 aut., 2 aut.); IPCMS-GEMM (ULP, UMR 7504 du CNRS), 23 rue du Loess/67037 Strasbourg/France (3 aut., 4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Vacuum; ISSN 0042-207X; Coden VACUAV; Royaume-Uni; Da. 2000; Vol. 56; No. 3; Pp. 221-226; Bibl. 23 ref.</SO>
<LA>Anglais</LA>
<EA>We report on the transport and magnetic properties of Co<sub>x</sub>
Cu<sub>1</sub>
-x metallic granular system, with 0.2 < x < 0.25. These samples have been prepared by ion beam sputtering at room temperature on glass substrate. Giant magnetoresistance (GMR) has been observed for all the concentrations studied with an average amplitude around 2% for the as-deposited samples at 300 K. The maximum value has been observed for the Co<sub>21</sub>
Cu<sub>79</sub>
 granular alloy. Above this Co concentration the MR decreases which is attributed to the start of the percolation mechanism. The annealing of Co<sub>21</sub>
Cu<sub>79</sub>
 granular alloy at 450°C leads to a strong increase of the MR to reach 16% after 2 h annealing. The variation of magnetic and transports properties with the Co concentration and annealing time is discussed.</EA>
<CC>001B70E60E; 001B70E30V; 001B70E70P; 240</CC>
<FD>Etude expérimentale; Matériau granulaire; Cobalt alliage; Cuivre alliage; Pulvérisation faisceau ionique; Magnétorésistance géante; Recuit; Effet concentration; Aimantation saturation; Couche mince; Force coercitive; Diffraction RX; 7560E; 7530V; 7570P; Alliage CoCu; Co Cu</FD>
<FG>Métal transition alliage</FG>
<ED>Experimental study; Granular materials; Cobalt alloys; Copper alloys; Ion beam sputtering; Giant magnetoresistance; Annealing; Quantity ratio; Saturation magnetization; Thin films; Coercive force; XRD</ED>
<EG>Transition element alloys</EG>
<SD>Pulverización haz iónico; Imanación saturación</SD>
<LO>INIST-6762.354000086891930100</LO>
<ID>00-0215199</ID>
</server>
</inist>
</record>

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Magnetic and transport properties of ion beam sputtered CoxCu1-x granular alloys

Magnetic and transport properties of ion beam sputtered CoxCu1-x granular alloys

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