TRANSPORT PROPERTIES OF FERROMAGNETIC TRANSITION METALS

A. Fert , I. Campbell

We review recent experiments showing that electrical conduction in transition ferromagnetics at low temperature is by two currents of spin ↑ and spin ↓ electrons in parallel, mixed by spin-non-conserving collisions when temperature increases. The relative values of transition impurity resistivities for spin "up" and spin "down" electrons are explained. A two current model allows a better understanding of many other transport properties, such as spontaneous anisotropy of the resistivity, thermoelectric power, thermal conductivity, ordinary and extraordinary Hall effect, magnetoresistance. Some comments on the resistivity near the Curie point are also presented.

Domaines: Articles anciens

A. Fert, I. Campbell. TRANSPORT PROPERTIES OF FERROMAGNETIC TRANSITION METALS. Journal de Physique Colloques, 1971, 32 (C1), pp.C1-46-C1-50. ⟨10.1051/jphyscol:1971109⟩. ⟨jpa-00213911⟩