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Magneto-volume effects in Fe-Cu solid solutions

AuthorsGorria, P.; Blanco, J. A.; Hernando, A.
KeywordsMetastable solid solutions
Magneto-volume effects
Issue DateMay-2006
CitationJournal of Magnetism and Magnetic Materials 300(1): 229-233 (2006)
AbstractThe magnetic properties of Fe–Cu metastable solid solutions have been investigated by means of neutron diffraction and magnetisation measurements. These compounds exhibit ferromagnetic order with Curie temperatures above room temperature for concentrations beyond 40 at% in Fe. The magnetic moment at 5 K can reach values over 2 μB, while the high field susceptibility is similar to that found in FCC–FeNi Invar alloys. These features together with the low values for the linear coefficient for thermal expansion in the ferromagnetic region suggest that magneto-volume anomalies, including Invar behaviour, play a major role in the magnetic properties of this system when the crystal structure is face centred cubic. Such behaviour could be explained using theoretical total-band energy calculations.
Description5 pages, 5 figures.-- et al.
Publisher version (URL)http://dx.doi.org/10.1016/j.jmmm.2005.10.073
Appears in Collections:(ICMA) Artículos
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