Fig. 3: QPI and FT-STS images of the cleaved ZrSiTe surface.
From: Visualizing discrete Fermi surfaces and possible nodal-line to Weyl state evolution in ZrSiTe
a Spatially resolved dI/dV conductance map acquired simultaneously with the topographic STM image shown in Fig. 1b (Vbias = −20 mV). The image size is 50 nm × 50 nm. b, c Symmetrized Fourier transforms of the dI/dV maps taken at −20 and −60 meV, respectively. The raw FT-QPI image of b is shown in Supplementary Fig. 4c. d, f The QPI patterns are the same as that shown in b. The arrows represent the scattering q-vectors. e, g Fermi pockets with regions of high spectral density are marked as red dots and the arrows indicate the scattering pathways between these red dots. The scatterings between these dots are responsible for the q-vectors in the FT-STS images, and the corresponding relationship is d to e, f to g, respectively. h The dispersions of the q1, q2, q3, q5, and q9 vectors. The slopes of these dispersions are ranged from 1.5 to 4 eVÅ.
