Figure 4
From: Fractal Nanotechnology
Plan-view comparison of the crossbars obtained (a) crossing lithographically defined lines, (b) using the lithographically defined lines above as seeds for S8PT+, (c) using the lithographically defined lines above as seeds for S3PT×, and (d) a Cantor middle-third excluded set using a minor variant of S3PT×. In each structure the square with dashed sides denotes a unit cell suitable for the complete surface tiling