Science Advances

Supplementary Materials

This PDF file includes:

  • section S1. Sample.
  • section S2. Jumps in negative field.
  • section S3. Tunneling out of metastable state.
  • section S4. One-wall model.
  • section S5. Multiple domains and the network model.
  • fig. S1. Photo of the Hall bar used in the experiment.
  • fig. S2. Curves of Ryx versus H for the transition between Chern states induced by sweeping H to negative values (arrow), with Vg fixed at −80 V.
  • fig. S3. Field profiles of Rxx as H is decreased through −Hc at temperatures 10 to 83 mK (A) and 83 to 152 mK (B).
  • fig. S4. The effect of increasing T on the curves of Ryx (A) and Rxx (B), with Vg fixed at −120 V (upper edge of the optimal gating window).
  • fig. S5. Sketch of the device with a domain wall bisecting the film.

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