Schematic diagram of the F/S system in the geometry of a doubly connected “Andreev interferometer.” The ends of the single-crystal ferromagnetic (Ni) segment (dashed lines) are closed by a superconducting (In) bridge. The dimensions are indicated for the sample with the resistance oscillations shown in Fig. 3.
Typical temperature dependence of the resistance of the system in the AI geometry.
The magnetic-field oscillations of the resistance of a ferromagnetic (Ni) conductor in an AI system with the dimensions given in Fig. 1, in absolute (left-hand scale) and relative (right-hand scale) units. . .
The magnetic-field oscillations of the resistance of a ferromagnetic (Ni) conductor in an AI system with an aperture area twice that of the system illustrated in Fig. 1 (solid curve, right-hand scale). . . The dashed curve shows the oscillations presented in Fig. 3.
Geometry of the model. See text for details.
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