Fig. 4: Field-tunable signature of electron scattering and interference.

a Sixfold symmetrized FT of L(r,V) = (dI/dV)/(I/V) map at 14 mV. Orange circles enclose lattice Bragg peaks Q_Bragg. The main scattering wave vectors are circled in green (q₁). Constant energy contour schematic of Fermi arc dispersion with (b) large and (c) small Fermi arcs originating from pairs of Weyl nodes around each K point (red and blue circles in c), and d, e corresponding auto-correlations. f, g Experimental L(r,V) maps at 16 mV and 11 mV, respectively, showing the scattering signature qualitatively consistent with those in (d, e). h Comparison of L(r,V) maps at zero field (top row) and 3 T (bottom row). i Radially averaged linecuts of FTs of L(r,V) maps, starting at (Q_Bragg,1 + Q_Bragg,2)/3, focusing on the reciprocal space region denoted by the green circle in (a), at 0 T (left), 3 T (middle) and their difference (right). STM setup conditions: I_set = 280 pA, V_sample = 35 mV, V_exc = 1 mV.