Structural and Magnetic Properties of the Half-Ferromagnetic Co2+x+yMn1-xA11-y Alloys
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Física
2007
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| _version_ | 1876476917862891520 |
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| author | C. Paduani |
| author_facet | C. Paduani |
| contents | Structural and Magnetic Properties of the Half-Ferromagnetic Co2+x+yMn1-xA11-y Alloys C. Paduani J. D. Ardisson J. C. Krause M.I. Yoshida A. Migliavacca Física, Astronomía y Matemáticas Half Cobalt Aluminum Manganese Heusler alloys Co2+x+yMn1¡xAl1¡y intermetallic compounds have been prepared by arc melting and studied with X-raydiffraction and magnetization measurements to ascertain the effect of deviations of composition from the stoichiometryon the ferromagnetism of this system. Hysteresis loops registered at room temperature show a softferromagnetic behavior in excess Co. In off-stoichiometric alloys the saturation magnetization is lower than inCo2MnAl, whereas the Curie temperature TC is higher in all the studied alloys. TC varies substantially withvariations in composition and increases with the Mn content. In the source of this behavior a volume effect isinferred which is expected to lead to strengthened ferromagnetic exchanges 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437815 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.37 |
| format | Artículo científico |
| id | redalyc_46437815 |
| institution | Redalyc |
| language | en |
| publishDate | 2007 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Structural and Magnetic Properties of the Half-Ferromagnetic Co2+x+yMn1-xA11-y Alloys C. Paduani Física, Astronomía y Matemáticas Half Cobalt Aluminum Manganese Heusler alloys Structural and Magnetic Properties of the Half-Ferromagnetic Co2+x+yMn1-xA11-y Alloys C. Paduani J. D. Ardisson J. C. Krause M.I. Yoshida A. Migliavacca Física, Astronomía y Matemáticas Half Cobalt Aluminum Manganese Heusler alloys Co2+x+yMn1¡xAl1¡y intermetallic compounds have been prepared by arc melting and studied with X-raydiffraction and magnetization measurements to ascertain the effect of deviations of composition from the stoichiometryon the ferromagnetism of this system. Hysteresis loops registered at room temperature show a softferromagnetic behavior in excess Co. In off-stoichiometric alloys the saturation magnetization is lower than inCo2MnAl, whereas the Curie temperature TC is higher in all the studied alloys. TC varies substantially withvariations in composition and increases with the Mn content. In the source of this behavior a volume effect isinferred which is expected to lead to strengthened ferromagnetic exchanges 2007 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46437815 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.37 |
| title | Structural and Magnetic Properties of the Half-Ferromagnetic Co2+x+yMn1-xA11-y Alloys |
| topic | Física, Astronomía y Matemáticas Half Cobalt Aluminum Manganese Heusler alloys |
| url | https://www.redalyc.org/articulo.oa?id=46437815 |