Figure 1
From: Metal free half metallicity in 2D system: structural and magnetic properties of g-C4N3 on BN

Schematic illustrations of top and side views for adsorption structure.
(a)–(b) C1 on top of BN hollow and N1 and C2 on top B (c)–(d) C1 on top of B and N1 and C2 on top of BN hollow (e)–(f) C1 on top of N belonged to BN layer and N1 and C2 on top of BN hollow (g) (1 × 1) structure of g-C4N3.