3dElements in Superconducting PdSb

Dilute solutions of CrSb and MnSb in PdSb are found to exhibit localized magnetic moments in both their superconducting and magnetic behavior. Solutions of other $3d$ element antimonides in PdSb are much weaker magnetically. The behavior of the dilute solutions bears a marked resemblance to the magnetic characteristics of the pure $3d$-element antimonides. Both superconducting and heat-capacity data yield an $s-d$ exchange integral of about 0.17 eV for the conduction-electron-Mn-ion interaction, and about 1.4 eV for the conduction-electron-Cr-ion interaction.