Electronic spin-spin coupling in rare earth doped semiconductor and semimetal clusters

Abstract

Coupling between electronic spins in rare earth doped TeN and BiN clusters is investigated by size selective Stern—Gerlach deflection experiments. The results are interpreted in terms of Dy3+(Te N )3− and Dy3+(Bi N )3− structures. This magnetochemical approach is consistent with a Zener type exchange spin coupling between valence electrons and the localized electrons in the impurity core.