Magnetization Distribution in Ferromagnetic MnPt3by a Polarized-Neutron Investigation

Abstract

The magnetic electron distribution in Mn${\mathrm{Pt}}_3$ ferromagnetic alloy has been determined by the polarized neutron technique. The Mn form factor in the ferromagnetic state has been determined and agrees closely with the theoretical one calculated for the free atom. The magnetic moments are $(3.64\mathrm{}\pm 0.08){\mu }_B$ for Mn atoms and $(0.26\mathrm{}\pm 0.03){\mu }_{\beta }$ for Pt atoms. The magnetic electron distribution on Pt atoms is strongly aspherical. The tetragonal field splits the $d$ levels into sublevels. The population of these sublevels has been estimated.