Uranium nitride-a spin polarized weak itinerant electron antiferromagnet with strongly correlated electrons

A brief survey of anomalous properties of uranium nitride-a collinear metallic antiferromagnet with NaCl-structure is presented and argued that it must be regarded as a weak antiferromagnet with polarized itinerant electrons. It is shown that this new weak itinerant antiferromagnet appears to be a very simple magnetic system, well understood within the Fermi liquid picture of spin polarized 5f-electrons, and may be used as a model to study basic problems of strongly correlated systems.