Figure 6: SC gap on β and electron FSs.
From: Observation of strong electron pairing on bands without Fermi surfaces in LiFe1−xCoxAs
The measured kF positions are illustrated in a and b. (c–f) ARPES intensities that are divided by the FD function convoluted with the system resolution. NS and SC state EDCs that are crossed the kF positions of the β, γ and δ bands are shown in g and h. Red/pink and blue/cyan circles represent the NS and SC state EDCs respectively. The gap values are extracted by using BCS spectral function plus a polynomial function. The fitted results are shown in g and h with green dashed curves.
