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Publication
Journal of Applied Physics
Paper
Covalent magnetism: An alternative to the Stoner model
Abstract
We show that itinerant magnetism in a variety of transition-metal systems cannot be described by the familiar Stoner model (rigid-band theory). Magnetism as found in elemental anti-ferromagnets, in certain impurity systems (transition metals in transiton metals), and in certain transition-metal compounds is shown to arise from spin-dependent changes in the covalent interactions between the d states of neighboring transition-metal atoms.