Fig. 3From: Formation of Boron-Carbon Nanosheets and Bilayers in Boron-Doped Diamond: Origin of Metallicity and SuperconductivityModel of the BDD structure. a Diagram showing a distribution of the boron (blue) and carbon (gray) atoms in the (\( \overline{1} \)10) plane. Arrows indicate the displacement of boron atoms along the [111] direction. The cubic and hexagonal stacking sequences are highlighted in red. The distance between boron atoms after the displacement is 1.3 Å. The average modulation period is 43 Å for a BDD crystal having a boron concentration of ~2 × 1020 cm−3. b Projection of 2D structure on the (111) planeBack to article page