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2010 | 118 | 4 | 648-651
Article title

The Effect of Gd Impurities on the Physical Properties of Half-Metallic Ferromagnet Co_2MnSi

Content
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EN
Abstracts
EN
In this paper we report our experimental and theoretical studies on the effect of Gd impurity on the physical properties of the Heusler half-metallic ferromagnet Co_2MnSi. The analysis of the band structures of the doped alloy shows that the half-metallic properties are completely conserved if Gd substitutes Mn atoms. This effect is not determined by the spin-orbit interaction, but through the coupling between the R(4f) spin with the Mn(3d) itinerant electron spins. We evaluate the strength of such a coupling by calculating, in an ab initio fashion, the total energy of Co_{16}GdMn_7Si_8 compound for a parallel and antiparallel f-d coupling. The obtained magnetic moments of Co or Mn sites are in good agreement with the experimental ones.
Keywords
EN
Year
Volume
118
Issue
4
Pages
648-651
Physical description
Dates
published
2010-10
received
2010-01-26
(unknown)
2010-08-04
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n422kz
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