- Broida 1640
Refreshments served at 3:40!
Robert Birgeneau - University of California, Berkeley
The fields of quantum magnetism and superconductivity have been repeatedly revitalized by the discovery of new and wondrous materials systems. For the past 25 years, condensed matter physicists have been both enthralled and mystified by the so-called high Tc superconductors which are based on two dimensional layers of CuO2. Recently, new families of materials based on 2D layers of FeAs or FeSe have been discovered; these systems exhibit overall phase diagrams much like those of the famous lamellar copper oxide superconductors but with important apparent differences in their underlying physics. We will review some recent results in this rapidly evolving field.