New observations concerning magnetism and superconductivity in heavy-fermion metals

Abstract Ce-based heavy-fermion superconductors (HFSC) exhibit magnetic phase diagrams differing from those of both the ideal Kondo lattice and substitutional alloys with intact Ce sublattice. While for the Ce-based HFSC (with well localized 4f shell) superconductivity and antiferromagnetic order seem to compete with each other, both phenomena typically coexist for U-based HFSC (with less localized 5f shell).