Fig. 4
From: Topological Lifshitz transitions and Fermi arc manipulation in Weyl semimetal NbAs
Resolving the fine structure of figure-8-like FS. a–c are the measured Fermi surface patch around the \(\overline{\rm{{X}}}\) point, 2D curvature analysis results and calculations, respectively. Nominal K dosage for this set of data is 1.8 monolayer (ML), which is slightly smaller than that of the K-dosed data presented in Figs. 2, 3. d Measured constant-energy contour at 0.1 eV below EF. e Three representative band dispersions along cut #1, #2, and #3, clearly showing four band crossings of the TSSs that leads to two long SFAs forming the figure-8-like FS
