Extended Data Fig. 4: Comparison between ARPES data and simulations.
From: Electronic rotons and Wigner crystallites in a two-dimensional dipole liquid

a-c, ARPES data (left panel) compared with simulations (right panel) for black phosphorus doped by K at n marked on top of each panel in units of 1013 cm−2 and rs. The band dispersion for simulations is obtained by fitting the peak position of ARPES data and the variation of spectral intensity as a function of k is obtained from the well-known phase interference effect57,58 (Methods). d-f, Corresponding ARPES data and spectral simulations after normalizing the intensity of peaks in each EDC. Our spectral simulations reproduce key aspects of not only raw data in a-c, but also normalized data in d-f.