Manifestations of the Electron-Phonon Coupling in
the Spectroscopy of High-Temperature Superconductors
Figure 5
(a) ARPES spectrum of the undoped CaCuOCl in the nodal point fitted by Lorentzian (dashed line) and Gaussian (thick solid line). The notations A and B define the maximum of the peak and the point where spectral density arises, respectively. Narrow peak in the vicinity of zero energy is the ARPES spectrum of SrRuO. (b) Dispersion of A and B. The positions of the chemical potentials for different samples are shown by the horizontal lines. (c) Experimental ARPES spectra in the vicinity of the nodal point, after Shen et al. [59].
