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Web of Science: 6 cites,
Why the iron magnetization in Gd2Fe14B and the spontaneous magnetization of Y2Fe14B depend on temperature differently
Kuz'min, N. D. (Institut für Festkörper- und Werkstofforschung Dresden)
Givord, Dominique (Institut Néel)
Skumryev, Vassil (Universitat Autònoma de Barcelona. Departament de Física)

Data: 2010
Resum: It is demonstrated that the temperature dependence of the iron sublattice magnetization in Gd2Fe14B is affected significantly by the Gd–Fe exchange interaction. This is at variance with the common perception that MFe(T) in iron-rich rare-earth intermetallics is determined predominantly by the Fe–Fe exchange. This phenomenon is discussed by considering the modification of the low-energy spin-wave spectrum of Gd2Fe14B, as compared to that of Y2Fe14B, under the influence of the Gd–Fe interaction. The result is of particular significance for evaluating the temperature dependence of the magnetocrystalline anisotropy of iron or cobalt compounds with anisotropic rare earths (e. g. , Nd2Fe14B) and in turn, of the hard magnetic properties of such compounds.
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Drets: Tots els drets reservats
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Matèria: Materials ; Propietats magnètiques
Publicat a: Journal of applied physics, Vol. 107, Núm. 11 (June 2010) , p. 113924/1-113924/4, ISSN 0021-8979

DOI: 10.1063/1.3443576

4 p, 190.5 KB

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