Figure 3: Angle-dependent transport measurements in the quantum anomalous Hall regime.
From: Metal-to-insulator switching in quantum anomalous Hall states
(a) Quantum anomalous Hall results when the six QL magnetic TI film is rotated to θ=90°, 120° and 150°, respectively. The external magnetic field is swept between −1 T and +1 T. The sample temperature is 0.02 K. (b) Magneto-resistance results of the sample under different tilted angle θ at T=0.02 K. The film enters the QAHE insulating state when it is rotated parallel to the magnetic field. Angle-dependent (c) Ryx and (d) Rxx under different fixed B at T=0.02 K. All curves tend to converge at two critical points at (Rxx, Ryx)=(0, h/e2) and (∼15 h/e2, 0).
