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Abstract
The local magnetic moments and the magnetic susceptibilities of aluminum clusters containing Fe, Co, or Ni impurities are calculated in terms of a local spin density and the model “atom embedded into spherical jellium.” The clusters contain up to 100 atoms. The 3d impurities can be either magnetic or nonmagnetic depending on the cluster size. The magnetic susceptibility is an oscillating function of the cluster size: it is positive for an iron impurity in aluminum clusters, near zero for cobalt, and negative for nickel. The calculation results agree with the experimental data obtained for aluminum-based dilute alloys.
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