Theory of magnetoresistance in amorphous ferromagnetics

Expressions are obtained for the symmetric anomalous conductivity tensor of ferromagnetic alloys based on 3d-transition metals. The contribution to anomolous conductivity of scattering on structural disorder is evaluated, and a numerical calculation of longitudinal and transverse components of the conductivity and magnetoresistance tensors is performed for Ni0.81P0.19 and Fe0.87B0.13. The results obtained agree satisfactorily with experiment.