TRANSPORT AND MAGNETIZATION IN THE BADLY METALLIC ITINERANT FERROMAGNET SRRUO3

SrRuO3 is an itinerant ferromagnet with T-c similar to 160 K and a 'ba d metal' in the limit of k(F)l = O(1). While the magnetic properties o f SrRuO3 in the paramagnetic phase, near the ferromagnetic phase trans ition 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 fer romagnets. We conjecture that the distinct transport behaviour of SrRu O3 is related to its being a 'bad metal' in the k(F)l = O(1) limit, an d discuss the possible relevance of our results to the unusual transpo rt properties of other 'bad metals' such as high-temperature supercond uctors.