Extended Data Fig. 10: The SkL melting processes observed under different electron beam intensities.
From: Melting of a skyrmion lattice to a skyrmion liquid via a hexatic phase
η6 is the power-law decay exponent of the orientational correlation function G6(r) calculated from the real space SkL configurations throughout the melting process. The critical value of η6 → 1/4 is indicated in each panel by a line near the hexatic to liquid phase transition. Shaded areas are at the same magnetic fields as in Fig. 4 in the main text, indicating where the two transitions happen respectively. The results rule out the possibility of non-equilibrium behaviors induced by electron beam irradiation in our experiments.
