Interrelation between the electrical resistance of amorphous alloys and their atomic and electronic structures

Abstract

Based on the results of the investigations of temperature dependences of electrical resistance of a number of iron-based amorphous metallic alloys, a model of electrical resistance that takes into account the common features of the atomic and electronic structures of these alloys has been developd. It has been established that the alloying of these materials by elements that are located to the left of Fe in the periodic table leads to a nonlinearity, which is described satisfactorily by the T 1/2 law. This feature is explained by the phenomenon of weak localization in cluster structures formed around an alloying atom. The origin of such a localization is considered with allowance for the electron structure, which makes it possible to explain some singularities in the temperature dependences of the electrical resistance.