E0033 MARGARET C. ETTER CAREER AWARD WINNER FOR 2003

Structure- Property Relationships of Superconducting and Heavy Fermion Intermetallics. Julia Chan, Dept. of Chemistry, Louisiana State Univ., Baton Rouge, LA 70803, jchan@lsu.edu

The details of a single crystal structure can provide deep insights into the relationship between structure and electronic properties which can make a substantial impact on technology. This has been illustrated for the structure-sensitive physical properties such as superconductivity and magnetism. My research program is aimed at the exploration of the rewarding boundary between structure, bonding and properties such as superconductivity and magnetism in rare earth intermetallics. The crystal growth, structure and magnetic and transport properties of various rare earth transition metal main group compounds (RE-T-X) will be discussed. For example, magnetic ordering and/ or superconductivity at low temperatures have been found in CeCoIn₅, CeRhIn₅, CeIrIn₅, and Ce₂RhIn₈ and CeBe₁₃. In this talk, I will discuss the structures of new materials, compare structural trends with properties of intermetallics exhibiting magnetic ordering and superconductivity in light of substitution of various rare earth transition metals and main group elements, providing the opportunity to study structure-property relationships and the interplay of magnetism and superconductivity.