Magnetic Viscosity Due to Solute Atom Pairs. Part I. Theory of the Effect

Abstract
It is shown that solute atom pairs in ferromagnetic alloys, as well as the interstitial atoms in iron, can give magnetic viscosity. The viscosity field of the alloys vs wall displacement is determined for various crystal structures. The maximum value of the viscosity field is related to the anisotropy energy induced in the same materials by heat treating in a magnetic field.