Figure 4 | Scientific Reports

Figure 4

From: Equilibrium shape of single-layer hexagonal boron nitride islands on iridium

Figure 4

Formation of a trapezoidal hBN island at different growth conditions. (a) Thermodynamic Wulff construction of an hBN island on Ir without steps. Green line is γ(χ, Δμ), and gray triangle indicates the Wulff shape. (bd) Transition of a triangular island shape to trapezoidal after including the interaction of hBN with the Ir steps and subsequent rotation of \(\hat{s}\). Gray lines indicate Ir steps. (e) Plot of δ(β, Δμ). For δ < 0 (blue region) and δ > 0 (red region), trapezoidal and triangular islands grow on the Ir surface, respectively.

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