[13:00] Weekly Online Seminar: The New Ferropnictide Superconductors: Dawn of the Iron Age?

Speaker: Peter Hirschfeld, University of Florida

Hosted by: Trent University, Dept. of Physics and Astronomy

I will review some highlights of the recent literature on the new FeAs-based superconductors, with Tc’s up to ~55K. This will include basic experimental properties, theories of electronic structure, some phenomenology of magnetism and pairing, and proposals to detect the symmetry of the superconducting state. Questions I hope to discuss include: To what extent are these systems similar to the high-Tc superconducting cuprates? What is the origin of the ordered magnetism observed in the parent compounds? How can we reconcile apparently contradictory indications of different pairing symmetries? Is the physics observed common to the different subfamilies of these materials, or are there qualitative differences? Recent work on the pairing state and on effects of disorder within a multiband spin fluctuation approach will also be presented.

If you are planning to attend this seminar, ensure you have registered using the link provided at the top of this announcement. AG rooms will only be opened for these seminars where someone has indicated they plan to attend.