NickelMaghrebV1, Main, Exploration, bibRecord, 000723

Effect on alloying at the Fe/Ni(001) interfaces on the interlayer exchange coupling

Identifieur interne : 000723 ( Main/Exploration ); précédent : 000722; suivant : 000724

Effect on alloying at the Fe/Ni(001) interfaces on the interlayer exchange coupling

Auteurs : A. Hadj-Larbi [Algérie] ; A. Ziane [Algérie] ; S. Bouarab [Algérie] ; C. Deinangeat [France]

Source :

The European physical journal. B, Condensed matter physics [ 1434-6028 ] ; 2006.

RBID : Pascal:06-0497549

Descripteurs français

Pascal (Inist)
- Réaction interface, Moment magnétique, Interaction échange, Calcul ab initio, Méthode fonctionnelle densité, Diffusion mutuelle, Couche interfaciale, Arrangement atomique, Epaisseur, Energie totale, Fer, Nickel, Alliage ordonné, Superréseau, Couche ultramince, 6835F, 7570C.
Wicri :
- topic : Fer, Nickel.

English descriptors

KwdEn :
- Ab initio calculations, Atomic arrangement, Density functional method, Exchange interactions, Interdiffusion, Interface reaction, Interfacial layer, Iron, Magnetic moments, Nickel, Ordered alloy, Superlattices, Thickness, Total energy, Ultrathin films.

Abstract

We investigate the stability of various ordered FeNi alloys at the interfaces of Fe/Ni superlattices by using ab initio density functional calculation. We consider an Fe_0.5Ni_0.5 ordered alloy of one or two monolayers thick at different positions beyond the interface and the possibility of an interdiffusion of a complete monolayer of Ni(Fe) in Fe(Ni) slab. An interfacial atomic layer of Fe_0.5Ni_0.5 exchanged with its adjacent Ni monolayers; leading to a buffer zone of Ni₃Fe composition is found to be the most stable structural configuration. For this atomic arrangement we investigate the magnetic profile and the resulting interlayer exchange coupling between the Ni slabs for Fe spacer thickness of 0 to 4 monolayers.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">We investigate the stability of various ordered FeNi alloys at the interfaces of Fe/Ni superlattices by using ab initio density functional calculation. We consider an Fe<sub>0.5</sub>
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 ordered alloy of one or two monolayers thick at different positions beyond the interface and the possibility of an interdiffusion of a complete monolayer of Ni(Fe) in Fe(Ni) slab. An interfacial atomic layer of Fe<sub>0.5</sub>
Ni<sub>0.5</sub>
 exchanged with its adjacent Ni monolayers; leading to a buffer zone of Ni<sub>3</sub>
Fe composition is found to be the most stable structural configuration. For this atomic arrangement we investigate the magnetic profile and the resulting interlayer exchange coupling between the Ni slabs for Fe spacer thickness of 0 to 4 monolayers.</div>
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Effect on alloying at the Fe/Ni(001) interfaces on the interlayer exchange coupling

Effect on alloying at the Fe/Ni(001) interfaces on the interlayer exchange coupling

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri