Localization and bandwidth of the 3d-orbitals in
magnetic Ni and Co clusters*
J. Morenzin, H. Kietzmann, P. S. Bechthold**, G. Ganteför, and
Institut für Festkörperforschung, Forschungszentrum
Jülich, 52425 Jülich, Germany
Abstract: Photoelectron spectra of negatively charged Nin-
, Cun-, and Con- clusters
are presented. The spectra of the Nin- clusters
contain information about the degree of localization of the 3d valence
orbitals, which is strongly related to the magnetic properties. In the
clusters with less than 7 atoms, the 3d orbitals seem to be almost totally
localized. For Co13- we find indications of a
narrowing of the 3d-derived valence "bandwidth" corresponding
to a presumed high symmetry and a high degree of degeneracy of the 3d
*Lectures from the 10th International Conference
on High Temperature Materials Chemistry (HTMC-X), Jülich, Germany,
10-14 April 2000. Other presentations are published in this issue, pp.
** Corresponding author
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