This volume contains a collection of articles dealing with the physics and materials science of mostly metallic rare earth materials. Chapters deal with the formation of amorphous, microcrystalline and quasicrystalline phases by mechanical alloying, rapid solidification and even normal casting operations. As is often the case with these 4f elements, magnetism is a dominant topic and this is reflected in the chapters covering surface magnetism, electron-spin resonance, exchange coupling in lanthanide-transition metal phases and the magnetic behavior of ternary rare-earth stannides, including their crystal structures.