Magnetic studies of spin wave excitations in Ni/Au multilayers
Identifieur interne : 000416 ( Main/Exploration ); précédent : 000415; suivant : 000417Magnetic studies of spin wave excitations in Ni/Au multilayers
Auteurs : H. Salhi [Maroc] ; K. Chafai [Maroc] ; K. Benkirane [Maroc] ; H. Lassri [Maroc] ; M. Abid [Maroc] ; E. K. Hlil [France]Source :
- Physica. B, Condensed matter [ 0921-4526 ] ; 2010.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
Abstract
Ni/Au multilayers were prepared by the electron beam evaporation method under ultra high vacuum conditions. The multilayer films have a coherent structure with (111) texture. The magnetic properties of Ni/Au multilayers are examined as a function of Ni layer thickness tNi. The temperature dependence of the spontaneous magnetization M(T) is well described by a T3/2 law in all multilayers. A spin wave theory has been used to explain the magnetization versus temperature. Based on this theory, the approximate values for the bulk exchange interaction Jb, surface exchange interaction Js and the interlayer coupling strength Jl have been obtained for various Ni layer thicknesses.
Affiliations:
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Approximate method</term>
<term>Electron beam evaporation</term>
<term>Exchange interactions</term>
<term>Gold</term>
<term>Magnetization</term>
<term>Multilayers</term>
<term>Nickel</term>
<term>Spin wave approximation</term>
<term>Spontaneous magnetization</term>
<term>Temperature effects</term>
<term>Texture</term>
<term>Thickness</term>
<term>Ultrahigh vacuum</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Aimantation</term>
<term>Evaporation faisceau électronique</term>
<term>Ultravide</term>
<term>Texture</term>
<term>Epaisseur</term>
<term>Effet température</term>
<term>Aimantation spontanée</term>
<term>Approximation onde spin</term>
<term>Méthode approchée</term>
<term>Interaction échange</term>
<term>Nickel</term>
<term>Or</term>
<term>Multicouche</term>
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<front><div type="abstract" xml:lang="en">Ni/Au multilayers were prepared by the electron beam evaporation method under ultra high vacuum conditions. The multilayer films have a coherent structure with (111) texture. The magnetic properties of Ni/Au multilayers are examined as a function of Ni layer thickness t<sub>Ni</sub>
. The temperature dependence of the spontaneous magnetization M(T) is well described by a T<sup>3/2</sup>
law in all multilayers. A spin wave theory has been used to explain the magnetization versus temperature. Based on this theory, the approximate values for the bulk exchange interaction J<sub>b</sub>
, surface exchange interaction J<sub>s</sub>
and the interlayer coupling strength J<sub>l</sub>
have been obtained for various Ni layer thicknesses.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
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<tree><country name="Maroc"><noRegion><name sortKey="Salhi, H" sort="Salhi, H" uniqKey="Salhi H" first="H." last="Salhi">H. Salhi</name>
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<name sortKey="Benkirane, K" sort="Benkirane, K" uniqKey="Benkirane K" first="K." last="Benkirane">K. Benkirane</name>
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<country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Hlil, E K" sort="Hlil, E K" uniqKey="Hlil E" first="E. K." last="Hlil">E. K. Hlil</name>
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