Induced Magnetization Density andf−dBonding in UGe3

A polarized- neutron study of the compound U${\mathrm{Ge}}_3$ has revealed that the susceptibility at the Ge atom is paramagnetic and highly aspherical. A fit to experiment has been obtained with a single $4d_{z^2}$ orbital at the Ge site. Such an effect probably arises from charge transfer from U to Ge and strong hybridization with the unoccupied Ge $4d$ states.