QCorrection in the Spectra of the Iron Group

Abstract

A semiempirical correction term, proportional to the "seniority operator" $Q$, is introduced into the Slater formulas for the configurations $3d^{n}4s^k$ of the second spectra of V, Cr, and Fe. The agreement with the experimental data, obtained by least squares, is improved by about 20%. The physical meaning of this correction is discussed.