Figure 2: ARPES spectra of PLCCO with and without protect annealing.

(a–c) FS mappings of as-grown, weakly annealed and annealed samples, respectively. The intensity is integrated over ±10 meV of EF. The suppressed intensities at the hot spots, the crossing points of the FS and the AFM Brillouin zone boundary, are fully recovered in the annealed sample. (d–f) Intensity plot in energy-momentum space for each sample along each cut indicated in a–c. (g–i) EDCs plotted for each cut. Blue EDCs are taken at kF positions. Peak positions are marked by vertical bars. The AFM pseudogap that is observed at the hot spots (cut 2) of the as-grown and weakly annealed samples is suppressed in the annealed sample.