Fig. 2: Self-assembly rolling of magnetic membranes.
From: Azimuthal anisotropy induced by partial flux-closure in self-assembled tubular permalloy membranes
a Schematic representation of the fabrication process for rolled-up magnetic membranes. Optical images of the layer stack are shown before (b) and after (c) the rolling process, which involves rolling the polymeric platform along with the magnetic membrane. In (b), planar permalloy membranes of increasing widths (labeled structures, 1–8) with their contact lines are visible. After rolling, these transform into tubular membranes with various winding numbers. A schematic representation above the rolled membranes depicts a simplified cross-sectional view of the rolled structures in (c). d Schematic illustration of the fabrication process for rolled-down magnetic membranes.
