Abstract

The spatial variation of the s-conduction electron polarization in the Fe3Si system is determined from neutron scattering, magnetization saturation and hyperfine field measurements. This polarization is then combined with magnetization saturation and hff data for solute atoms Mn, V, Co, and Ni in Fe3Si to obtain the solute moments and host moment perturbations due to these impurities. The behavior of these solute moments and moment perturbations is seen to be very similar to those in binary Fe alloys. Since Fe3Si is closely related to Heusler alloys, it is suggested that their magnetic behavior is also governed by the same mechanism that determines the magnetic behavior of Fe; that is, the conduction d-like electron, not the s-like electrons cause the magnetic alignment.

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