Extended Data Fig. 1: Effects of Disorder. | Nature Physics

Extended Data Fig. 1: Effects of Disorder.

From: Topological edge and corner states in bismuth fractal nanostructures

Extended Data Fig. 1

a-e Geometric disorder, f-j potential disorder, k-o displacement disorder. a,f, and k show the type of disorder studied, and the other plots are the LDOS in presence of the specific disorder. All different types of disorder have been simulated using the same parameters as before; a number of grid points nx = ny = 200, an effective electron mass meff = 0.42, a lattice parameter \({a}_{0}\) = 1 nm, an intrinsic spin-orbit parameter λISOC = 106, a potential height u = 0.9 eV, and FWHM of the Gaussian potential d = 0.62 nm. For geometric disorder, we used 1500 waves, but for the other two types of disorder only 750 waves. In the potential disorder, we introduced an error to the potential height taken from a uniform distribution between [-0.1 u, 0.1 u]. For the position disorder, the scatterers coordinates are modified using a uniform distribution between [-0.1\({a}_{0}\), 0.1\({a}_{0}\)] for both axes.

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