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We use angle-resolved photoemission spectroscopy (ARPES) to investigate theelectronic properties of the newly discovered oxypnictide superconductor,NdFeAsO_{1-x}F_x. We find a well-defined Fermi surface that consists of a largehole pocket at the Brillouin zone center and a smaller electron pocket in eachcorner of the Brillouin zone. The overall location and shape of the Fermisurface agrees reasonably well with calculations. The band dispersion is quitecomplicated with many flat bands located just below the chemical potential. Weobserve a superconducting gap of 20 meV, which indicates that this system is inthe strong coupling regime. The emergence of a coherent peak below the criticaltemperature Tc and diminished spectral weight at the chemical potential aboveTc closely resembles the spectral characteristics of the cuprates.

Fermi surface and strong coupling superconductivity in single crystal NdFeAsO_{1-x}F_x