FIG. 2. (a)–(c) dI/dV maps taken at the same clean Sb surface with B = 0 T, −3 T, +3 T, respectively. The magnetic field is applied along the c axis. The maps are all taken at E = 30 meV with V = − 100 mV and I = 0.5 nA. (d)–(f) Spectroscopic 2 × 2 vector peaks taken at B = 0T, −3 T, +3 T, respectively. The images are Fourier transforms of spectroscopic maps. A circular region of the full Fourier-transformed image is shown for clarity, highlighting the six 2 × 2 vector peaks. The height of the three pairs of vector peaks is marked with arbitrary units for each data. The chirality can be defined as the counting direction (clockwise or anticlockwise) from the lowest to highest pair vector peaks as marked by the rotating arrows.
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