Figure 1: Time-resolved spectra on a nearly optimally doped Bi2212. | Nature Communications

Figure 1: Time-resolved spectra on a nearly optimally doped Bi2212.

From: Ultrafast quenching of electron–boson interaction and superconducting gap in a cuprate superconductor

Figure 1

(a) Equilibrium (before pumping, t=−1 ps) and transient (after pumping, t=1 and 10 ps) photoelectron intensity (represented by false colour) as a function of energy and momentum measured along a nodal cut for a pump fluence of 24 μJ cm−2. The bold solid black lines are the momentum distribution curve (MDC) dispersions at the corresponding delay time. The arrows mark the position of the kink at ħω0 ~70 meV. (b) MDC dispersions for different delay times (−1, 1 and 10 ps). Insets show comparisons of MDCs before pumping (−1 ps) and after pumping (1 ps) for a series of binding energies (−0.15, −0.07 and −0.02 eV).

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