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Magnetic states of iron in metastable fcc Fe-Cu alloys (Articolo in rivista)
- Type
- Label
- Magnetic states of iron in metastable fcc Fe-Cu alloys (Articolo in rivista) (literal)
- Anno
- 2006-01-01T00:00:00+01:00 (literal)
- Alternative label
Orecchini, A; Sacchetti, F; Petrillo, C; Postorino, P; Congeduti, A; Giorgetti, C; Baudelet, F; Mazzone, G (2006)
Magnetic states of iron in metastable fcc Fe-Cu alloys
in Journal of alloys and compounds
(literal)
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- Orecchini, A; Sacchetti, F; Petrillo, C; Postorino, P; Congeduti, A; Giorgetti, C; Baudelet, F; Mazzone, G (literal)
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- ISI Web of Science (WOS) (literal)
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- Univ Perugia, INFM, CRS, SOFT, I-06123 Perugia, Italy; Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy; Univ Roma La Sapienza, INFM Coherentia, I-00185 Rome, Italy; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; Synchrotron Soleil Orme Merisiers, F-91192 Gif Sur Yvette, France; Univ Paris 11, CNRS, CEA, Minist Jeunesse Educ Natl & Rech,LURE, F-91898 Orsay, France; ENEA, Ctr Ric Casaccia, Div Nuovi Mat, Rome, Italy (literal)
- Titolo
- Magnetic states of iron in metastable fcc Fe-Cu alloys (literal)
- Abstract
- X-ray magnetic circular dicroism at the K absorption edge of iron is exploited to elucidate the local spin structure of Fe in metastable, ferromagnetic fee Fe-Cu alloys. At Fe concentrations as high as 50 at.%, Fe-Cu alloys are particularly suitable for studying the magnetic state of iron in an fee environment, because of the negligible contribution of copper to the alloy magnetic moment. The experimental spectra are consistent with the picture of iron atoms coexisting in two different magnetic moment states and point out at the negative sign associated with the low magnetic moment state. This result brings in more evidence on multiple magnetic states, simultaneously present in 3d alloys with competing ferromagnetic and antiferromagnetic interactions, and offers a common explanation to the Invar effects recently reported for the Fe-Cu system. (c) 2005 Elsevier B.V. All rights reserved. (literal)
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