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. 2017 Jun 16;8:15854. doi: 10.1038/ncomms15854

Figure 3. Free-energy densities of BPII on different patterned surfaces.

Figure 3

(a–c) Free-energy density difference, Δf=f−fBulk, and (d–f) surface free energy density, fS, as a function of different pattern parameters, for different BPII-lattice orientations: BPII(100) (circles), BPII(110) (squares) and BPII(111) (triangles). Consistent with experimental observations, BPII(111) is obtained for uniform homeotropic and planar anchoring (HR=1 and HR=0, of the stripe-like pattern). These results show the parameter intervals over which each pattern favours a particular lattice orientation; thus BPII(100) is favoured when HR≈0.5, BPII(110) when W≈75 nm and BPII(111) for all values of r.