Spectral function analysis of an e-doped Hi-Tc superconductor near optimal doping, revisited

By comparison with the p-doped high transition temperature superconductors, their e-doped counterparts might give further insight into the unusual underlying physics. High resolution angle-resolved photoemission spectroscopy (ARPES) data of an e-doped cuprate near optimal doping is presented to further enrich previous comprehensive work on the subject \footnote{N.P. Armitage et al., PRB 68, 064517 (2003); H. Matsui et al., PRLetters 94, 047005 (2005)}. Spectral function analysis is also used to discuss band renormalizations. Other findings will be discussed as well.