Composition and annealing dependence of magnetic properties in amorphous Tb–Co based alloys
Identifieur interne : 000624 ( Istex/Curation ); précédent : 000623; suivant : 000625Composition and annealing dependence of magnetic properties in amorphous Tb–Co based alloys
Auteurs : M. L Soltani [Algérie] ; N. Chakri [Algérie] ; M. Lahoubi [Algérie]Source :
- Journal of Alloys and Compounds [ 0925-8388 ] ; 2001.
Abstract
The aim of the work is to study the magnetic properties of Tb1−xCox amorphous alloys with respect to the composition and annealing temperature. The samples have been prepared by the dc triode co-sputtering. The most important results are: (1) Curie temperature is higher than the room temperature for the magnetic samples with Co content x>0.6, before annealing rises Tc with Co content. Crystallization commences at approximately 400°C. (2) A significant high field susceptibility, even up to 8 Tesla, confirms the sperimagnetic structure. (3) A biaxial anisotropy occurs before annealing due to stress, but a uniaxial anisotropy is induced by the field annealing; the anisotropy value is dependent upon composition.
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DOI: 10.1016/S0925-8388(01)01102-1
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<front><div type="abstract" xml:lang="en">The aim of the work is to study the magnetic properties of Tb1−xCox amorphous alloys with respect to the composition and annealing temperature. The samples have been prepared by the dc triode co-sputtering. The most important results are: (1) Curie temperature is higher than the room temperature for the magnetic samples with Co content x>0.6, before annealing rises Tc with Co content. Crystallization commences at approximately 400°C. (2) A significant high field susceptibility, even up to 8 Tesla, confirms the sperimagnetic structure. (3) A biaxial anisotropy occurs before annealing due to stress, but a uniaxial anisotropy is induced by the field annealing; the anisotropy value is dependent upon composition.</div>
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