Magnetic Studies in Sputtered Ni/Ti Multilayers
Identifieur interne : 000103 ( France/Analysis ); précédent : 000102; suivant : 000104Magnetic Studies in Sputtered Ni/Ti Multilayers
Auteurs : H. Salhi [Maroc] ; K. Chafai [Maroc] ; H. Lassri [Maroc] ; M. Abid [Maroc] ; E. K. Hlil [France]Source :
- Journal of superconductivity and novel magnetism [ 1557-1939 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
Abstract
Magnetic properties of Ni/Ti multilayers, prepared by the DC triode sputtering method, have been studied by magnetic measurements. Both metal layers are crystalline with a (111) fiber structure when they are thicker than 20 A. The magnetization decreases with a decrease in Ni layer thickness tNi and the analysis of the results at 5 K indicates the presence of a dead Ni layer about 13 Å thick. The effective anisotropy Keff of Ni/Ti multilayers is obtained using a torque magnetometer. Spin-wave theory has been used to explain the temperature dependence of the magnetization. Approximate values for bulk exchange interaction Jb, surface exchange interaction JS and interlayer coupling strength JI for various Ni layer thicknesses have been obtained.
Affiliations:
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Pascal:11-0380746Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Exchange interactions</term>
<term>Magnetic anisotropy</term>
<term>Magnetization</term>
<term>Multilayers</term>
<term>Nickel</term>
<term>Spin wave approximation</term>
<term>Sputter deposition</term>
<term>Thickness</term>
<term>Titanium</term>
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<term>Aimantation</term>
<term>Epaisseur</term>
<term>Anisotropie magnétique</term>
<term>Approximation onde spin</term>
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<term>Titane</term>
<term>Multicouche</term>
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<front><div type="abstract" xml:lang="en">Magnetic properties of Ni/Ti multilayers, prepared by the DC triode sputtering method, have been studied by magnetic measurements. Both metal layers are crystalline with a (111) fiber structure when they are thicker than 20 A. The magnetization decreases with a decrease in Ni layer thickness t<sub>Ni</sub>
and the analysis of the results at 5 K indicates the presence of a dead Ni layer about 13 Å thick. The effective anisotropy K<sub>eff</sub>
of Ni/Ti multilayers is obtained using a torque magnetometer. Spin-wave theory has been used to explain the temperature dependence of the magnetization. Approximate values for bulk exchange interaction J<sub>b</sub>
, surface exchange interaction J<sub>S</sub>
and interlayer coupling strength J<sub>I</sub>
for various Ni layer thicknesses have been obtained.</div>
</front>
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