(a) Schematic of a FMSET with Al island and Co leads; (b) AFM image of a fabricated FMSET. The two Co leads (perpendicular to the Al island) are and in width, respectively. The Al island is in width, and the distance between the junctions is .
characteristics of the FMSET. curves obtained at different temperatures. At temperature below the critical temperature of Al , a clear gap can be observed; At , superconducting gap is destroyed.
Current vs sweeping field. The arrows along the curve indicate the sweeping direction of the applied magnetic field.
Critical fields measured at different temperatures. Solid line is the fitting result of vs .
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