A month-old discovery of superconductivity at 55K in FeAs compounds has
set the condensed matter physics world on fire. Here at Hopkins, our
experimentalists have already performed high-quality measurements of a
crucial physical property of these materials, the superconducting
energy gap. The paper detailing the results of Chen
et al. will appear shortly. In this
talk, the authors will present their findings in a pedagogical format,
accessible to all educated non-experts.