MAGNETO-OPTIC PROPERTIES OF NICKEL IRON AND COBALT

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 ε2′ corresponding to transitions in the 3d ↓ subband is pushed down by the curve ε2′ with the opposite sign corresponding to transitions in the 3d ↑ subband. © 1968 The American Institute of Physics.