Fig. 6: Modelling of the relaxation of the superconducting order parameter.
From: Evidence for metastable photo-induced superconductivity in K3C60
a, Local free energy potential as a function of the local complex superconducting order parameter ψm. The arrow indicates the phase diffusion channel. b, Time evolution of the integrated loss of spectral weight in the region of the superconducting gap (left axis, blue dots and triangles denote measurements on two different samples) and corresponding modelling (right axis, solid blue curve) using a time-dependent Ginzburg–Landau framework as described in the main text. The grey dotted line is a guide to the eye. c–e, Snapshots of the on-site complex order parameters ψm for three different time delays of 0 ns (c) (right after excitation), 1 ns (d) and 25 ns (e).
