Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/85450
Type: Artigo
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.
Paixão, 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.
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.
Subject: Magnetoresistência
Anisotropia
Compostos de ferro
Country: Estados Unidos
Editor: AIP Publishing
Citation: Journal Of Applied Physics. American Institute Of Physics Inc., v. 117, n. 1, p. - , 2015.
Rights: aberto
Identifier DOI: 10.1063/1.4905173
Address: https://aip.scitation.org/doi/10.1063/1.4905173
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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