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

Figure 4

(a) Scattering rates 𝛾(𝜔,𝑇),𝛾_tr(𝜔,𝑇), and 𝛾^∗tr—from top to bottom—for the Eliashberg function in (b). From [33–35]. (b) Eliashberg spectral function 𝛼^2𝑒𝑝(𝜔)𝐹_ph(𝜔) obtained from tunnelling experiments on break junctions [42–45]. Inset shows 𝛾^∗tr with (full line) and without (dashed line) interband transitions [3–5].

(a)

(b)