Fig. 3
From: Magnetic origami creates high performance micro devices

Shape-dependent behaviour of magnetic nanomembrane. a Magnetostatic free energy surfaces (FES) of rectangular design and corresponding experimental result of the device assembly. b Magnetostatic FES of trapezoidal design with a pitch of 1 µm/winding and corresponding experimental result of the device assembly. c Cross-sections of the FES in a with increasing number of windings. d Cross-sections of the FES in b with increasing number of windings. Scale bars are 1 mm