Figure 3: LL spectroscopy and the extraction of electronic band dispersion.
(a) Average dI/dV spectra, vertically offset for clarity, obtained at different applied magnetic fields. Each spectrum is determined by averaging 64 point-spectra, spaced equally along a 20-nm line cut across the region of the sample shown in Fig. 2a. (b) Normalized dI/dV spectra, vertically offset for clarity (see Supplementary Note 1 for normalization details). (c) Average-integrated momentum k versus bias dispersion of a single SS band crossing the Fermi level (circles) and the bare quasiparticle dispersion (red) (Supplementary Note 2). Different colours of circles indicate different LL indices. Setup condition in a are: Iset=100 pA, Vset=−100 mV.
