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

Figure 6

Dependence of 𝛾^∗tr(𝜔,𝑇) on 𝜀_∞ in Bi₂Sr₂CaCu₂O₈ for different temperatures: 𝜀_∞=4 (solid lines) and 𝜀_∞=1 (dashed lines). On the horizontal axis is 𝜔 in units cm⁻¹. From [99].