Science Advances

Supplementary Materials

This PDF file includes:

  • Fig. S1. X-ray diffraction spectrum of In2Se3 flakes.
  • Fig. S2. Air stability of In2Se3 and domains.
  • Fig. S3. Image contrast of domains under a tilted electron beam in LEEM.
  • Fig. S4. The control of electron beam tilt in LEEM.
  • Fig. S5. Tilt angle–dependent domain contrast.
  • Fig. S6. Proposed ferroelectric polarizations.
  • Fig. S7. TEM measurements.
  • Fig. S8. Ferroelectric polarization calculated using Berry phase method.
  • References (4047)

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