Through a Lattice Darkly: Shedding Light on Electron-Phonon Coupling in the High Tc Cuprates

Figure 19

(a) Superconducting for optimally doped for a series of substituted Lanthanides (Ln) with increasing atomic radius mismatch, = . See [68]. (b) Cartoon illustrating the location of the substituted Lanthanide right above the Cu-O plane. (c) Nodal point EDCs illustrating the quasiparticle peak for samples with increasing strain, colored in (a), from La to Eu. Inset quantifies the half-width half-max of the peaks for these samples.