Bosonic Spectral Function and the Electron-Phonon Interaction in HTSC Cuprates

Figure 20

(a) Fermi surface (FS) contours from two samples of F0234. 𝑁—electron-like; 𝑃—hole-like. Bold arrow is (𝜋,𝜋) scattering vector. Angle 𝜃 defines the horizontal axis in (b). (b) Leading gap edge along k-space angle from the two FS contours. From [152].

(a)

(b)