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

Figure 15

(a) Effective real self-energy for the nonsuperconducting La_2−𝑥Sr_𝑥CuO₄, 𝑥=0.03. Extracted 𝛼²_eff(𝜔)𝐹(𝜔) is in the inset. (b) Top: the total MDC width—open circles. Bottom: the EPI contribution shows saturation, impurity contribution—dotted black line. The residual part is growing ~𝜔^1.3. From [135].

(a)

(b)