Resistivity due to exchange scattering in dilute magnetic alloys

Publisher Website
Google Scholar
Abstract
In dilute binary alloys (up to about one atomic percent) with a random distribution of solute atoms, one may distinguish between isolated solute atoms and pairs of nearest neighbours of such atoms. If the solute atoms have a resultant spin and if there exists an exchange interaction between nearest neighbours as well as between the solute atoms and the conduction electrons, a temperature dependent impurity resistivity results. The sign of the temperature dependence is determined by the sign of the exchange interaction between neighbouring solute atoms, the wave vector of the conduction electrons at the Fermi level and the distance between nearest neighbours. The pair model provides a possible explanation of the behaviour of the resistivity of dilute magnetic alloys at low temperatures, as has been suggested by Brailsford and Overhauser, and by Dekker. Some consequence of this model are discussed

This publication has 2 references indexed in Scilit: