Exchange splitting in ferromagnetic nickel

Abstract:

An estimate of the exchange splitting between the up and down spin bands in ferromagnetic Ni is made on the basis of the ‘strong intra-atomic interaction’ model, account being taken of the major electron correlation effects. A splitting of about 0.4 ev at the top of the d band is obtained. It is shown that in the strong interaction model the exchange interaction between electrons in orthogonal orbitals leads to a negligible correction for Ni.

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http://iopscience.iop.org.sci-hub.cc/article/10.1088/0370-1328/84/4/301/pdf