Dielectric Screening in Transition Metals. II. Induced Spin Density in Nickel

抄録

Spin densities induced by an impurity in ferromagnetic nickel are calculated by means of generalized dielectric functions in a single band model of d-electrons and a two band model of d- and conduction-electrons. The calculated induced spin densities at zero wave vector in the two band model agree with the experimental results of the change of the magnetization due to an impurity in dilute Ni–Co and Ni–Fe alloys. Neutron scattering cross sections due to an impurity are calculated from the induced spin densities in the two models and the results are consistent with the experimental results for dilute Ni–Fe alloys.