Univ Santiago Chile Dept Fis Casilla 307 Santiago 2 Chile
Max Planck Inst Festkorperforsch D-70569 Stuttgart Germany

We present a detailed comparison of a discrete and a continuum treatment of the RKKY interaction between a spherical cluster and a localized spin. We show that, for short distances between the center of the cluster and the localized spin, there are considerable differences between these models.
 

Journal of Magnetism and Magnetic Materials, 167 161-165, 1997.