By Hamish Johnston
If you are wondering what physicists know (and don’t know) about the recently-discovered pnictide superconductors you are in luck — because several leading lights in the field have just published on that very subject.
Over on arXiv Hideo Hosono and colleagues have posted a Progress Report on our understanding of pnictide superconductors.
Meanwhile, Igor Mazin and David Parker have a paper in PRL with a nice description of the “order parameter symmetry mystery” that researchers are currently struggling with — the paper also proposes several Josephson interferometry tests that could clear things up.
