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Type: Artigo de periódico
Title: Evolution of the microstructure and magnetic properties of Sm(Co0.6Cu0.4)(5) alloys prepared with different Sm excess content
Author: Penton-Madrigal, A
Estevez-Rams, E
Espina-Hernandez, JH
Lora-Serrano, R
Knobel, M
Sinnecker, EHCP
de Oliveira, LAS
Sinnecker, JP
Grossinger, R
Turtelli, RS
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 (H-C) and the Curie temperature (T-C) 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.
Country: Inglaterra
Editor: Iop Publishing Ltd
Citation: Journal Of Physics D-applied Physics. Iop Publishing Ltd, v. 42, n. 12, 2009.
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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