Fig. 4
From: Observation of topologically protected states at crystalline phase boundaries in single-layer WSe2

Quasiparticle interference patterns in single-layer 1T′-WSe2. a Calculated band structure of single-layer 1T′-WSe2 along Γ-Y (brown) and Γ-P (green) directions in the ± 1 eV range. b–d Experimental dI/dV conductance maps taken at b Vs = +100 mV, It = 0.15 nA, c Vs = − 40 mV, It = 0.15 nA, and d Vs = − 300 mV, It = 0.15 nA (14 nm × 26.4 nm, f = 614 Hz, Vrms = 4 meV). e–g FFTs of the conductance maps in b–d. h–j Calculated QPI patterns for h E =+100 meV, i E = − 40 meV, and j E = − 300 meV