High-temperature superconductivity in iron-based materials

Tuesday, April 5, 2011 – 3:15pm
Reiss 502
Johnpierre Paglione
University of Maryland, Department of Physics

The discovery of high-temperature superconductivity in iron-based pnictide compounds has sparked a flurry of activity in the condensed matter physics community. With transition temperatures reaching close to 60 K, this exciting and rapidly expanding field of research has caused a surge of experimental and theoretical activity devoted to understanding this new family of materials. In this talk I will provide an overview of important research and a summary of the Maryland efforts in growth and characterization of iron-pnictide compounds. In particular, I will discuss our studies of transition metal-substituted intermetallic “122” superconductors, including Co-, Ni- and Pt-doped systems, as well as some recent developments that address the relation between superconductivity, magnetism and crystallographic structure.

J. Paglione and R.L. Greene, Nature Physics 6, 645 (2010).

Host: Paola Barbara
Discussion Leader: Paola Barbara