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Electric transport properties of thin-film bridges with laser-written channels of easy vortex motion
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View: Figures


Image of FIG. 1.
FIG. 1.

Schematics of a -wide, -long, and -thick superconducting bridge with a -long LW channel.

Image of FIG. 2.
FIG. 2.

Resistivity dependence on temperature for a YBCO bridge with (circles) and without (triangles) an -wide LW channel. The characteristics were measured using dc current. The inset shows semilog plots of the normalized resistivity vs temperature for the channeled bridge, recorded for bias currents ranging from .

Image of FIG. 3.
FIG. 3.

A semilog plot of the critical current density as a function of temperature for a reference (triangles) and channeled (circles) bridge with the and values indicated. The solid lines represent the best fits to the power law dependence, using the same and two different and , as well as and 2.2 values for the reference and channeled bridges, respectively.

Image of FIG. 4.
FIG. 4.

Exponent of the characteristics power law dependence of a pristine (triangles) and channeled (circles) bridge as a function of temperature. The arrows mark the possible vortex unbinding values, corresponding to .


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electric transport properties of YBa2Cu3O7−δ thin-film bridges with laser-written channels of easy vortex motion