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Planar superconductor-normal metal-superconductor Josephson junctions fabricated using epitaxial bilayers
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Schematic and (b) SEM image of a planar FIB junction. (c) SAD pattern of an epitaxial bilayer film on SiC substrate. (d) High-resolution TEM image near the interface, which is indicated by the arrows.

Image of FIG. 2.
FIG. 2.

Temperature dependence of resistance of a FIB junction and temperature dependence of resistivity of a film.

Image of FIG. 3.
FIG. 3.

Current-voltage characteristics of the FIB junction shown in Fig. 2 at , 15, 24, and . Inset: temperature dependence of (squares for measurement and solid line for Likharev model fit) and (dashed line).

Image of FIG. 4.
FIG. 4.

(Color online) (a) Current-voltage characteristics of an e-beam processed junction with and without applied microwave radiation at . (b) Measured (squares) and simulated (lines) results of microwave voltage dependences of the critical current and of the first and second Shapiro step heights.

Image of FIG. 5.
FIG. 5.

(Color online) Magnetic field dependence of critical current of a FIB junction at with both increasing (open squares) and decreasing (solid squares) field sweeps.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Planar MgB2 superconductor-normal metal-superconductor Josephson junctions fabricated using epitaxial MgB2∕TiB2 bilayers