Figure 3

Majorana localisation lengths. (a) Constant-height zero-bias AFM image of the defect-free chain. (b) Zero-bias normalised LDOS of the chain hosting a MBS. (c) LDOS(X) profile (black dots) taken along the chain revealing the localisation lengths of the zero-bias conductance peak (x=0). The blue curve corresponds to the probability density ${\left|\mathit{\psi }\right|}^2$ of a Majorana Bound state with two localization lengths ξ₁≈22 nm and ξ₂≈0.72 nm. They correspond to 59 and 2 atomic sites, respectively. The orange curve approximates the ${\left|\mathit{\psi }\right|}^2$ wavefunction by considering the effect of the tip radius d=0.17 nm.