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Type: Artigo de periódico
Title: Evolution Of The Microstructure And Magnetic Properties Of Sm(co 0.6cu0.4)5 Alloys Prepared With Different Sm Excess Content
Author: Penton-Madrigal A.
Estevez-Rams E.
Espina-Hernndez J.H.
Lora-Serrano R.
Knobel M.
Sinnecker E.H.C.P.
De Oliveira L.A.S.
Sinnecker J.P.
Grossinger R.
Turtelli R.S.
Abstract: The structure of annealed Sm(Co0.6Cu0.4)5 compounds, prepared with different Sm excess content, has been investigated by means of high resolution x-ray diffraction and scanning electron microscopy. The samples were also magnetically characterized by thermomagnetic analysis and M versus H curves at room temperature. Increasing Sm excess improves the compositional order of the 1 : 5 phase. The coercivity (HC) and the Curie temperature (TC) are both changed as a function of Sm excess content. The decrease in the structural defects density, resulting from the compositional order, is responsible for the observed magnetic behaviour. © 2009 IOP Publishing Ltd.
Rights: fechado
Identifier DOI: 10.1088/0022-3727/42/12/125005
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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