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Josephson nanoconstrictions made by AFM plowing of films
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10.1063/1.3481425
/content/aip/journal/jap/108/5/10.1063/1.3481425
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/5/10.1063/1.3481425
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) AFM top view of the nanobridge and nanoconstriction profile. The horizontal distance between the arrow marks in the profile defines the width of the nanoconstriction as 492.19 nm. (b) A 3D AFM image of the same nanobridge.

Image of FIG. 2.
FIG. 2.

AFM picture of VTB. The vertical distance between the arrow marks defines the variation in the thickness of the bridge. Black set of arrows show the thickness variation from edge to edge of VTB and the gray ones show the thickness from substrate to the right side edge.

Image of FIG. 3.
FIG. 3.

I-V curve of (a) nanoconstriction and (b) VTB without microwaves coupled to the junctions.

Image of FIG. 4.
FIG. 4.

Shapiro-steps of (a) nanoconstriction and (b) VTB bridges, after exposure to a 14.427 GHz and 15.383 GHz microwave signal, respectively.

Image of FIG. 5.
FIG. 5.

Critical current versus temperature of nanoconstriction and VTB bridge with linear fit.

Image of FIG. 6.
FIG. 6.

The effect of magnetic field on the critical current of the (a) nanoconstriction and (b) VTB bridge. Field is applied perpendicular to the plane of the bridge in both cases.

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/content/aip/journal/jap/108/5/10.1063/1.3481425
2010-09-14
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Josephson nanoconstrictions made by AFM plowing of YBa2Cu3O7−x films
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/5/10.1063/1.3481425
10.1063/1.3481425
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