Magnetic moment in Ni clusters estimated by an electronic-shell model.

Abstract

We estimate the size dependence of the magnetic moment of Ni clusters by using a simple electronic shell model, in which the 4{ital s} electron levels are described by the spherical harmonic oscillator model. This model reproduces the whole structure in the size dependence of the magnetic moment which has been experimentally observed. {copyright} {ital 1996 The American Physical Society.}