Transport and magnetization in the badly metallic itinerant ferromagnet

Abstract

is an itinerant ferromagnet with and a `bad metal' in the limit of . While the magnetic properties of in the paramagnetic phase, near the ferromagnetic phase transition and at low temperatures are normal and consistent with its being a strong itinerant ferromagnet, the transport properties (resistivity and magnetoresistance) sharply deviate from that of good metallic ferromagnets. We conjecture that the distinct transport behaviour of is related to its being a `bad metal' in the limit, and discuss the possible relevance of our results to the unusual transport properties of other `bad metals' such as high-temperature superconductors.