Origin of the peak-dip-hump structure in the photoemission spectra of Bi2212

  title={Origin of the peak-dip-hump structure in the photoemission spectra of Bi2212},
  author={Alexander A. Kordyuk and Sergey V. Borisenko and T. K. Kim and Konstantin Nenkov and Martin Knupfer and Mark S. Golden and J{\"o}rg Fink and Helmuth Berger and Rolf Follath},
  journal={Physical Review Letters},
The famous peak-dip-hump lineshape of the (\pi,0) photoemission spectrum of the bilayer Bi HTSC in the superconducting state is shown to be a superposition of spectral features originating from different electronic states which reside at different binding energies, but are each describable by essentially identical single-particle spectral functions. The 'superconducting' peak is due to the antibonding Cu-O-related band, while the hump is mainly formed by its bonding counterpart, with a c-axis… 
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