Magneto-optic Properties of Nickel, Iron, and Cobalt

Abstract

The frequency dependence of the real and imaginary parts of the nondiagonal components of the dielectric permeability tensor of iron, cobalt, and nickel is calculated in the region 0.2–6.0 eV from experimental curves of the equatorial Kerr effect. The curves obtained can be reconciled with results from photoemission by assuming that the curve of positive values of ε_2′ corresponding to transitions in the 3d ↓ subband is pushed down by the curve ε_2′ with the opposite sign corresponding to transitions in the 3d ↑ subband.