A summary of the most important results obtained in 3d transition metals and alloys by means of polarized neutron scattering is presented. The main conclusions are: i) the difference between the spherical form factor of the solid and the corresponding free ion is negligible in the fcc phases of Fe and Mn while i t is totally brought about by the paired electrons in the case of Ni; ii) the asphericity of the spin density in 3d systems is qualitatively well reproduced by the most advanced calculations, although the theory fails in reproducing quantitatively the experimental data; and iii) local environment effects, contributing to the magnetic state, are observed in both Fe and Mn when embedded in the fcc environment.

Forty years of polarized neutron scattering in ferromagnetic 3d metals and alloys

PETRILLO, Caterina;SACCHETTI, Francesco
2000

Abstract

A summary of the most important results obtained in 3d transition metals and alloys by means of polarized neutron scattering is presented. The main conclusions are: i) the difference between the spherical form factor of the solid and the corresponding free ion is negligible in the fcc phases of Fe and Mn while i t is totally brought about by the paired electrons in the case of Ni; ii) the asphericity of the spin density in 3d systems is qualitatively well reproduced by the most advanced calculations, although the theory fails in reproducing quantitatively the experimental data; and iii) local environment effects, contributing to the magnetic state, are observed in both Fe and Mn when embedded in the fcc environment.
2000
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/921201
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