Resolution:
## Figure 1.
Schematics of BC2N nanoribbons of the models A (a), B (b), C (c), and D (d). The red (blue) circles represent B (N) atoms and C atoms are located at the vertices
of hexagons. The yellow-shaded dotted lines represent the unit cell of BC_{2}N sheet of the model-I introduced in
[17]. The unit cell of BC_{2}N nanoribbons were indicated by the dashed rectangles.
Harigaya and Kaneko |