Fig. 5
From: Topological Lifshitz transitions and Fermi arc manipulation in Weyl semimetal NbAs
Detailed band structure evolution of topological Lifshitz transition of SFAs. a–f, g, and h are the evolution of the FS, representative band dispersion along the \(\overline{\rm{{M}}}\) - \(\overline{\rm{{Y}}}\) - \(\overline{\rm{{M}}}\) direction, and 3D intensity plot of the overall band structure with progressively increasing the K dose, respectively. For comparison, these contours are obtained by mirroring the photoemission spectrum with respect to the ky axis. The overall evolution consists of two stages: Stage I is from Panel a to Panel c, and Stage II is from Panel d to Panel f. Between these two stages, a surface topological quantum Lifshitz transition (TPLT) occurs. We note that the uneven intensity of the FS between the first and second BZs are due to the photoemission matrix element effect36
