Evidence for Two Current Conduction in Iron

Details Evidence for Two Current Conduction in Iron Evidence for Two Current Conduction in Iron

2007-11-28

arxiv.org/abs/0711.4478v1

Philosophical Magazine, {\bf 15} (1967) 977

Physics

Condensed Matter

Materials Science

Scientific paper

Measurements of resistivities of dilute iron based alloys show strong deviations from Matthiessen's rule. These deviations can be explained by a model in which spin up and spin down electrons conduct in parallel. The results are consistent with the theory of impurity shielding in these alloys. [This 1967 paper provides the first experimental demonstration of two current conduction at low temperatures in a ferromagnetic metal. One direct consequence of this property is the Giant Magnetoresistance discovered in 1988 by the groups of Albert Fert and of Peter Gr\"unberg].

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