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Impact of edge-barrier pinning in superconducting thin films
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View: Figures


Image of FIG. 1.
FIG. 1.

The dotted line represents and the solid curve represents the calculated assuming a perfect edge. This curve represents the maximum enhancement the edge barrier can have on a superconducting strip. Both curves are plotted for . Note that as the bridge width increases, the true asymptotically approaches the value of . For this plot we used the empirically derived equation , , , , .

Image of FIG. 2.
FIG. 2.

The black line represents the scaled curve normalized by . Markers of the same color and shape correspond to a single sample at different bridge widths. Data points are normalized with respect to the of the bridge, which were all in the range of . All measurements were done at 77.2 K and sample thickness is for each sample. In the above plot the Ginzburg–Landau depairing current density has been scaled by 0.2 for the theoretical curve. The inset is a simple magnification of the widths from 50 to emphasizing that there is a significant enhancement within this range.

Image of FIG. 3.
FIG. 3.

Measured transport curves for bridges of 5 and .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Impact of edge-barrier pinning in superconducting thin films