Figure 3 | Scientific Reports

Figure 3

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

Figure 3

Temperature dependence of OD63. (a) Second energy derivative of nodal dispersion, (d/)2 k(ω), at T = 10, 55, 80, and 100 K, offset from each other by 0.008 eV−2Å−1. (b) Energies of a nodal α kink at θ = 0° (brown open circles), an off-nodal β kink at θ = 27° (purple filled circles), a nodal γ kink at θ = 0° (blue crosses), and an antinodal gap at θ = 40° (grey squares), observed across T c = 63 K. Circle size represents the kink strength. The error bars for the kink energy and gap energy represent the uncertainty in determining the peak position of (d/)2 k(ω) and the EDC at the Fermi momentum, respectively.

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