Figure 4 | Scientific Reports

Figure 4

From: A New Landscape of Multiple Dispersion Kinks in a High-T c Cuprate Superconductor

Figure 4

Doping dependence of nodal data. (a) Second energy derivatives of dispersion, (d/)2 k(ω), offset from each other by 0.01 eV−2Å−1. (b) Kramers-Kronig transform of inverse group velocity, (d/)k(ω), offset from each other by 0.15 eV−1Å−1. The original data taken with  = 8.1 eV for optimally doped T c = 91 K (OP91) and overdoped T c = 80 K (OD80) samples were reported in ref. 18.

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