OBSERVATION OF MAGNETISM AND KONDO EFFECT FOR SC IONS IN METALLIC HOSTS

By applying perturbed angular gamma-ray distribution methods we have e xplored the possible occurrence of magnetism for Sc ions implanted int o metallic hosts. Strongly host-dependent magnetic behavior was found for Sc in alkali metals. The local susceptibility reflects predominant ly orbital contributions and shows a maximum as a function of temperat ure, both of which are consistent with a nearly localized, ionic 3d(1) one-electron configuration. These features are similar to certain 4f( 1) Ce systems. We compare to theory within the framework of Kondo mode ls and local spin density calculations.