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Type: Artigo de periódico
Title: Effects Of Ga Substitution On The Structural And Magnetic Properties Of Half Metallic Fe2mnsi Heusler Compound
Author: Pedro S.S.
Caraballo Vivas R.J.
Andrade V.M.
Cruz C.
Paixao L.S.
Contreras C.
Costa-Soares T.
Caldeira L.
Coelho A.A.
Carvalho A.M.G.
Rocco D.L.
Reis M.S.
Abstract: The so-called half-metallic magnets have been proposed as good candidates for spintronic applications due to the feature of exhibiting a hundred percent spin polarization at the Fermi level. Such materials follow the Slater-Pauling rule, which relates the magnetic moment with the valence electrons in the system. In this paper, we study the bulk polycrystalline half-metallic Fe2MnSi Heusler compound replacing Si by Ga to determine how the Ga addition changes the magnetic, the structural, and the half-metal properties of this compound. The material does not follow the Slater-Pauling rule, probably due to a minor structural disorder degree in the system, but a linear dependence on the magnetic transition temperature with the valence electron number points to the half-metallic behavior of this compound.
Editor: American Institute of Physics Inc.
Rights: aberto
Identifier DOI: 10.1063/1.4905173
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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