Science Advances

Supplementary Materials

The PDF file includes:

  • Section S1. The stacking structures of hBN
  • Section S2. Identification of the stacking structure and the number of layers of hBN using DF-TEM
  • Section S3. A transition region at AA′/AB stacking boundary
  • Section S4. Deduction of atomic configuration of AA′A/ABA stacking boundary
  • Section S5. Stability of exposed and sandwiched 6′6′ twin boundary
  • Section S6. Identification of NB-AC stacking for bilayer hBN from the 1|2-layer boundary
  • Fig. S1. Stacking structures of hBN.
  • Fig. S2. Transition region at AA′/AB stacking boundary.
  • Fig. S3. AA′A- and ABA-stacked trilayer hBN.
  • Fig. S4. Atomic structures of the four possible stacking boundaries.
  • Fig. S5. Intensity profiles across the AA′/AB stacking boundary.
  • Fig. S6. The energy barrier for 558 configuration changing to 6′6′ configuration and IFFT images showing oscillation of 6′6′ configurations.
  • Fig. S7. Atomically sharp stacking boundary at a trilayer and a bilayer hBN.
  • Fig. S8. Probability of finding stacking boundary with an abrupt change or with a transition region.
  • Fig. S9. Comparison of experimental HR-TEM image with simulated images of open- and closed-edge conformations at the 1|2-layer boundary of AB-stacked hBN.
  • References (3740)

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.mp4 format). Transformation of 558-N to 6′6′-N configuration.
  • Movie S2 (.mp4 format). Formation of atomically sharp twin boundary at EK edge.

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