Fig. 3: Majorana zero mode at the end of line defects.
From: Topological surface superconductivity in FeSe0.45Te0.55
a Energies of the three lowest energy states, E1, E2, E3 as a function of scattering strength U0 for a line defect of length L = 119 sites in the topological phase with Chern number C = −1 and (JS, α, Δμ) = (7.5, 7, 0) meV. Here, α is the Rashba spin–orbit coupling, and JS is the magnetic exchange strength. The regions of U0 where the line defect exhibits a zero-energy state at its ends are shown using a gray background. b Linecut of the local density of states along the line defect for the two lowest energy states at E1, E2, and U0 = 71 meV. The plot of the local density of states at energies c E1 and d E2 for U0 = 71 meV. Filled black circles in c indicate the positions of the defects. The color bar represents the normalized local density of states.
