CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000285

Difference in the behaviour of interfacial Co and Ni atoms in CoxNi1-x/Pt multilayers : an explanation

Identifieur interne : 000285 ( PascalFrancis/Corpus ); précédent : 000284; suivant : 000286

Difference in the behaviour of interfacial Co and Ni atoms in CoxNi1-x/Pt multilayers : an explanation

Auteurs : M. Seddat ; M. Tessier ; R. Krishnan ; H. Lassri ; S. Visovsky ; S. K. Kulkarni ; M. Vedpathak

Source :

Journal of physics. D. Applied physics [ 0022-3727 ] ; 2000.

RBID : Pascal:00-0367155

Descripteurs français

Pascal (Inist)
- Etude expérimentale, Multicouche, Aimantation, Effet Kerr magnétooptique, Effet concentration, Transfert charge, Ferromagnétisme, Polarisation spin, Spectrométrie photoélectron, Cobalt alliage, Nickel alliage, Platine, Alliage binaire, Alliage CoNi, Pt, Co Ni, 7570C.

English descriptors

KwdEn :
- Binary alloys, Charge transfer, Cobalt alloys, Experimental study, Ferromagnetism, Kerr magneto-optical effect, Magnetization, Multilayers, Nickel alloys, Photoelectron spectroscopy, Platinum, Quantity ratio, Spin polarization.

Abstract

Magnetization at 5 K and polar Kerr spectra in Co_xNi_1-x/Pt multilayers were studied as functions of Co content in order to better understand the difference in the behaviour of interfacial Co and Ni atoms. While the magneto-optic enhancement in the Kerr spectra is observed for the whole range of 0 < x < 1 the enhancement in the magnetization arising from the spin polarization of Pt occurs only for x > 0.3 indicating that Pt atoms are not polarized by the Ni atoms. The x-ray photoelectron spectroscopy experiments indicate that there is charge transfer from Pt to 3d bands of Ni at the interface, leading to the loss of ferromagnetism in Ni. Therefore, non-magnetic Ni is not able to polarize Pt and induce a moment. In contrast, in the case of Co, no charge transfer is seen and Co remains ferromagnetic and induces a moment on Pt by polarization effects.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0022-3727`
A02	`01`			`@0 JPAPBE`
A03		`1`		`@0 J. phys., D, Appl. phys.`
A05				`@2 33`
A06				`@2 14`
A08	`01`	`1`	`ENG`	`@1 Difference in the behaviour of interfacial Co and Ni atoms in Co_xNi_1-x/Pt multilayers : an explanation`
A11	`01`	`1`		`@1 SEDDAT (M.)`
A11	`02`	`1`		`@1 TESSIER (M.)`
A11	`03`	`1`		`@1 KRISHNAN (R.)`
A11	`04`	`1`		`@1 LASSRI (H.)`
A11	`05`	`1`		`@1 VISOVSKY (S.)`
A11	`06`	`1`		`@1 KULKARNI (S. K.)`
A11	`07`	`1`		`@1 VEDPATHAK (M.)`
A14	`01`			`@1 Laboratoire de Magnétisme et d'Optique, UVSQ - CNRS, 45, Avenue des Etats Unis @2 78035 Versailles @3 FRA @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A14	`02`			`@1 Laboratoire des Matériaux et de Microélectronique, Faculté des Sciences, Université Hassan II, Ain Chock @2 Casablanca @3 MAR @Z 4 aut.`
A14	`03`			`@1 Charles University, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5 @2 12116 Prague @3 CZE @Z 5 aut.`
A14	`04`			`@1 Centre for Advanced Studies in Material Science and Solid State Physics, Department of Physics, University of Poona @2 Pune 411 007 @3 IND @Z 6 aut. @Z 7 aut.`
A20				`@1 1662-1665`
A21				`@1 2000`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 5841 @5 354000090211070060`
A44				`@0 0000 @1 © 2000 INIST-CNRS. All rights reserved.`
A45				`@0 17 ref.`
A47	`01`	`1`		`@0 00-0367155`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of physics. D. Applied physics`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 Magnetization at 5 K and polar Kerr spectra in Co_xNi_1-x/Pt multilayers were studied as functions of Co content in order to better understand the difference in the behaviour of interfacial Co and Ni atoms. While the magneto-optic enhancement in the Kerr spectra is observed for the whole range of 0 < x < 1 the enhancement in the magnetization arising from the spin polarization of Pt occurs only for x > 0.3 indicating that Pt atoms are not polarized by the Ni atoms. The x-ray photoelectron spectroscopy experiments indicate that there is charge transfer from Pt to 3d bands of Ni at the interface, leading to the loss of ferromagnetism in Ni. Therefore, non-magnetic Ni is not able to polarize Pt and induce a moment. In contrast, in the case of Co, no charge transfer is seen and Co remains ferromagnetic and induces a moment on Pt by polarization effects.
C02	`01`	`3`		`@0 001B70E70C`
C02	`02`	`X`		`@0 240`
C03	`01`	`3`	`FRE`	`@0 Etude expérimentale @5 01`
C03	`01`	`3`	`ENG`	`@0 Experimental study @5 01`
C03	`02`	`3`	`FRE`	`@0 Multicouche @5 02`
C03	`02`	`3`	`ENG`	`@0 Multilayers @5 02`
C03	`03`	`3`	`FRE`	`@0 Aimantation @5 03`
C03	`03`	`3`	`ENG`	`@0 Magnetization @5 03`
C03	`04`	`3`	`FRE`	`@0 Effet Kerr magnétooptique @5 04`
C03	`04`	`3`	`ENG`	`@0 Kerr magneto-optical effect @5 04`
C03	`05`	`3`	`FRE`	`@0 Effet concentration @5 05`
C03	`05`	`3`	`ENG`	`@0 Quantity ratio @5 05`
C03	`06`	`X`	`FRE`	`@0 Transfert charge @5 06`
C03	`06`	`X`	`ENG`	`@0 Charge transfer @5 06`
C03	`06`	`X`	`SPA`	`@0 Transferencia carga @5 06`
C03	`07`	`3`	`FRE`	`@0 Ferromagnétisme @5 07`
C03	`07`	`3`	`ENG`	`@0 Ferromagnetism @5 07`
C03	`08`	`X`	`FRE`	`@0 Polarisation spin @5 08`
C03	`08`	`X`	`ENG`	`@0 Spin polarization @5 08`
C03	`08`	`X`	`GER`	`@0 Spinpolarisation @5 08`
C03	`08`	`X`	`SPA`	`@0 Polarización spin @5 08`
C03	`09`	`3`	`FRE`	`@0 Spectrométrie photoélectron @5 09`
C03	`09`	`3`	`ENG`	`@0 Photoelectron spectroscopy @5 09`
C03	`10`	`3`	`FRE`	`@0 Cobalt alliage @5 13`
C03	`10`	`3`	`ENG`	`@0 Cobalt alloys @5 13`
C03	`11`	`3`	`FRE`	`@0 Nickel alliage @5 14`
C03	`11`	`3`	`ENG`	`@0 Nickel alloys @5 14`
C03	`12`	`3`	`FRE`	`@0 Platine @2 NC @5 15`
C03	`12`	`3`	`ENG`	`@0 Platinum @2 NC @5 15`
C03	`13`	`3`	`FRE`	`@0 Alliage binaire @5 16`
C03	`13`	`3`	`ENG`	`@0 Binary alloys @5 16`
C03	`14`	`3`	`FRE`	`@0 Alliage CoNi @2 NK @4 INC @5 52`
C03	`15`	`3`	`FRE`	`@0 Pt @4 INC @5 53`
C03	`16`	`3`	`FRE`	`@0 Co Ni @4 INC @5 54`
C03	`17`	`3`	`FRE`	`@0 7570C @2 PAC @4 INC @5 56`
C07	`01`	`3`	`FRE`	`@0 Métal transition alliage @5 48`
C07	`01`	`3`	`ENG`	`@0 Transition element alloys @5 48`
C07	`02`	`3`	`FRE`	`@0 Métal transition @5 49`
C07	`02`	`3`	`ENG`	`@0 Transition elements @5 49`
N21				`@1 255`

Format Inist (serveur)

NO :	PASCAL 00-0367155 INIST
ET :	Difference in the behaviour of interfacial Co and Ni atoms in Co_xNi_1-x/Pt multilayers : an explanation
AU :	SEDDAT (M.); TESSIER (M.); KRISHNAN (R.); LASSRI (H.); VISOVSKY (S.); KULKARNI (S. K.); VEDPATHAK (M.)
AF :	Laboratoire de Magnétisme et d'Optique, UVSQ - CNRS, 45, Avenue des Etats Unis/78035 Versailles/France (1 aut., 2 aut., 3 aut.); Laboratoire des Matériaux et de Microélectronique, Faculté des Sciences, Université Hassan II, Ain Chock/Casablanca/Maroc (4 aut.); Charles University, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5/12116 Prague/Tchèque, République (5 aut.); Centre for Advanced Studies in Material Science and Solid State Physics, Department of Physics, University of Poona/Pune 411 007/Inde (6 aut., 7 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of physics. D. Applied physics; ISSN 0022-3727; Coden JPAPBE; Royaume-Uni; Da. 2000; Vol. 33; No. 14; Pp. 1662-1665; Bibl. 17 ref.
LA :	Anglais
EA :	Magnetization at 5 K and polar Kerr spectra in Co_xNi_1-x/Pt multilayers were studied as functions of Co content in order to better understand the difference in the behaviour of interfacial Co and Ni atoms. While the magneto-optic enhancement in the Kerr spectra is observed for the whole range of 0 < x < 1 the enhancement in the magnetization arising from the spin polarization of Pt occurs only for x > 0.3 indicating that Pt atoms are not polarized by the Ni atoms. The x-ray photoelectron spectroscopy experiments indicate that there is charge transfer from Pt to 3d bands of Ni at the interface, leading to the loss of ferromagnetism in Ni. Therefore, non-magnetic Ni is not able to polarize Pt and induce a moment. In contrast, in the case of Co, no charge transfer is seen and Co remains ferromagnetic and induces a moment on Pt by polarization effects.
CC :	001B70E70C; 240
FD :	Etude expérimentale; Multicouche; Aimantation; Effet Kerr magnétooptique; Effet concentration; Transfert charge; Ferromagnétisme; Polarisation spin; Spectrométrie photoélectron; Cobalt alliage; Nickel alliage; Platine; Alliage binaire; Alliage CoNi; Pt; Co Ni; 7570C
FG :	Métal transition alliage; Métal transition
ED :	Experimental study; Multilayers; Magnetization; Kerr magneto-optical effect; Quantity ratio; Charge transfer; Ferromagnetism; Spin polarization; Photoelectron spectroscopy; Cobalt alloys; Nickel alloys; Platinum; Binary alloys
EG :	Transition element alloys; Transition elements
GD :	Spinpolarisation
SD :	Transferencia carga; Polarización spin
LO :	INIST-5841.354000090211070060
ID :	00-0367155

Links to Exploration step

Pascal:00-0367155

Le document en format XML

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<term>Effet concentration</term>
<term>Transfert charge</term>
<term>Ferromagnétisme</term>
<term>Polarisation spin</term>
<term>Spectrométrie photoélectron</term>
<term>Cobalt alliage</term>
<term>Nickel alliage</term>
<term>Platine</term>
<term>Alliage binaire</term>
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<front><div type="abstract" xml:lang="en">Magnetization at 5 K and polar Kerr spectra in Co<sub>x</sub>
Ni<sub>1-x</sub>
/Pt multilayers were studied as functions of Co content in order to better understand the difference in the behaviour of interfacial Co and Ni atoms. While the magneto-optic enhancement in the Kerr spectra is observed for the whole range of 0 < x < 1 the enhancement in the magnetization arising from the spin polarization of Pt occurs only for x > 0.3 indicating that Pt atoms are not polarized by the Ni atoms. The x-ray photoelectron spectroscopy experiments indicate that there is charge transfer from Pt to 3d bands of Ni at the interface, leading to the loss of ferromagnetism in Ni. Therefore, non-magnetic Ni is not able to polarize Pt and induce a moment. In contrast, in the case of Co, no charge transfer is seen and Co remains ferromagnetic and induces a moment on Pt by polarization effects.</div>
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<fA14 i1="01"><s1>Laboratoire de Magnétisme et d'Optique, UVSQ - CNRS, 45, Avenue des Etats Unis</s1>
<s2>78035 Versailles</s2>
<s3>FRA</s3>
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<sZ>2 aut.</sZ>
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<fA14 i1="02"><s1>Laboratoire des Matériaux et de Microélectronique, Faculté des Sciences, Université Hassan II, Ain Chock</s1>
<s2>Casablanca</s2>
<s3>MAR</s3>
<sZ>4 aut.</sZ>
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<fA14 i1="03"><s1>Charles University, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5</s1>
<s2>12116 Prague</s2>
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</fA14>
<fA14 i1="04"><s1>Centre for Advanced Studies in Material Science and Solid State Physics, Department of Physics, University of Poona</s1>
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<fA64 i1="01" i2="1"><s0>Journal of physics. D. Applied physics</s0>
</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Magnetization at 5 K and polar Kerr spectra in Co<sub>x</sub>
Ni<sub>1-x</sub>
/Pt multilayers were studied as functions of Co content in order to better understand the difference in the behaviour of interfacial Co and Ni atoms. While the magneto-optic enhancement in the Kerr spectra is observed for the whole range of 0 < x < 1 the enhancement in the magnetization arising from the spin polarization of Pt occurs only for x > 0.3 indicating that Pt atoms are not polarized by the Ni atoms. The x-ray photoelectron spectroscopy experiments indicate that there is charge transfer from Pt to 3d bands of Ni at the interface, leading to the loss of ferromagnetism in Ni. Therefore, non-magnetic Ni is not able to polarize Pt and induce a moment. In contrast, in the case of Co, no charge transfer is seen and Co remains ferromagnetic and induces a moment on Pt by polarization effects.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B70E70C</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>240</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>Etude expérimentale</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG"><s0>Experimental study</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Multicouche</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="3" l="ENG"><s0>Multilayers</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Aimantation</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>Magnetization</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Effet Kerr magnétooptique</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Kerr magneto-optical effect</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Effet concentration</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Quantity ratio</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Transfert charge</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Charge transfer</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Transferencia carga</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Ferromagnétisme</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Ferromagnetism</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Polarisation spin</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Spin polarization</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="GER"><s0>Spinpolarisation</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Polarización spin</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Spectrométrie photoélectron</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Photoelectron spectroscopy</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Cobalt alliage</s0>
<s5>13</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Cobalt alloys</s0>
<s5>13</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Nickel alliage</s0>
<s5>14</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Nickel alloys</s0>
<s5>14</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Platine</s0>
<s2>NC</s2>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Platinum</s0>
<s2>NC</s2>
<s5>15</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Alliage binaire</s0>
<s5>16</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Binary alloys</s0>
<s5>16</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Alliage CoNi</s0>
<s2>NK</s2>
<s4>INC</s4>
<s5>52</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>Pt</s0>
<s4>INC</s4>
<s5>53</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>Co Ni</s0>
<s4>INC</s4>
<s5>54</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE"><s0>7570C</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>56</s5>
</fC03>
<fC07 i1="01" i2="3" l="FRE"><s0>Métal transition alliage</s0>
<s5>48</s5>
</fC07>
<fC07 i1="01" i2="3" l="ENG"><s0>Transition element alloys</s0>
<s5>48</s5>
</fC07>
<fC07 i1="02" i2="3" l="FRE"><s0>Métal transition</s0>
<s5>49</s5>
</fC07>
<fC07 i1="02" i2="3" l="ENG"><s0>Transition elements</s0>
<s5>49</s5>
</fC07>
<fN21><s1>255</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 00-0367155 INIST</NO>
<ET>Difference in the behaviour of interfacial Co and Ni atoms in Co<sub>x</sub>
Ni<sub>1-x</sub>
/Pt multilayers : an explanation</ET>
<AU>SEDDAT (M.); TESSIER (M.); KRISHNAN (R.); LASSRI (H.); VISOVSKY (S.); KULKARNI (S. K.); VEDPATHAK (M.)</AU>
<AF>Laboratoire de Magnétisme et d'Optique, UVSQ - CNRS, 45, Avenue des Etats Unis/78035 Versailles/France (1 aut., 2 aut., 3 aut.); Laboratoire des Matériaux et de Microélectronique, Faculté des Sciences, Université Hassan II, Ain Chock/Casablanca/Maroc (4 aut.); Charles University, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5/12116 Prague/Tchèque, République (5 aut.); Centre for Advanced Studies in Material Science and Solid State Physics, Department of Physics, University of Poona/Pune 411 007/Inde (6 aut., 7 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of physics. D. Applied physics; ISSN 0022-3727; Coden JPAPBE; Royaume-Uni; Da. 2000; Vol. 33; No. 14; Pp. 1662-1665; Bibl. 17 ref.</SO>
<LA>Anglais</LA>
<EA>Magnetization at 5 K and polar Kerr spectra in Co<sub>x</sub>
Ni<sub>1-x</sub>
/Pt multilayers were studied as functions of Co content in order to better understand the difference in the behaviour of interfacial Co and Ni atoms. While the magneto-optic enhancement in the Kerr spectra is observed for the whole range of 0 < x < 1 the enhancement in the magnetization arising from the spin polarization of Pt occurs only for x > 0.3 indicating that Pt atoms are not polarized by the Ni atoms. The x-ray photoelectron spectroscopy experiments indicate that there is charge transfer from Pt to 3d bands of Ni at the interface, leading to the loss of ferromagnetism in Ni. Therefore, non-magnetic Ni is not able to polarize Pt and induce a moment. In contrast, in the case of Co, no charge transfer is seen and Co remains ferromagnetic and induces a moment on Pt by polarization effects.</EA>
<CC>001B70E70C; 240</CC>
<FD>Etude expérimentale; Multicouche; Aimantation; Effet Kerr magnétooptique; Effet concentration; Transfert charge; Ferromagnétisme; Polarisation spin; Spectrométrie photoélectron; Cobalt alliage; Nickel alliage; Platine; Alliage binaire; Alliage CoNi; Pt; Co Ni; 7570C</FD>
<FG>Métal transition alliage; Métal transition</FG>
<ED>Experimental study; Multilayers; Magnetization; Kerr magneto-optical effect; Quantity ratio; Charge transfer; Ferromagnetism; Spin polarization; Photoelectron spectroscopy; Cobalt alloys; Nickel alloys; Platinum; Binary alloys</ED>
<EG>Transition element alloys; Transition elements</EG>
<GD>Spinpolarisation</GD>
<SD>Transferencia carga; Polarización spin</SD>
<LO>INIST-5841.354000090211070060</LO>
<ID>00-0367155</ID>
</server>
</inist>
</record>

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Difference in the behaviour of interfacial Co and Ni atoms in CoxNi1-x/Pt multilayers : an explanation

Difference in the behaviour of interfacial Co and Ni atoms in CoxNi1-x/Pt multilayers : an explanation

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