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Supercurrent decay in nano-superconducting quantum interference devices for intrinsic magnetic flux resolution
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10.1063/1.3078519
/content/aip/journal/apl/94/6/10.1063/1.3078519
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/6/10.1063/1.3078519
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron micrograph of a nanosensor showing SQUID loop and the Dayem nanobridge Josephson junctions. A schematic draw of the device including the micrometric integrated coil for the calibration operations is shown in the upper figure.

Image of FIG. 2.
FIG. 2.

Current-voltage characteristic of a hysteretic nano-SQUID measured at . The inset shows the critical current as a function of the external magnetic flux.

Image of FIG. 3.
FIG. 3.

Experimental data (dots) and theoretical predictions in the moderately damping limit (solid lines) of the switching current distribution (P) and the escape rates vs the bias current of a nano-SQUID measured at different temperatures. The capacitance is and the other fitting parameters are as follows: (a) , , at , (b) , , , at , (c) , , , at , and (d) , , , at .

Image of FIG. 4.
FIG. 4.

Magnetic flux resolution as function of the temperature of a nano-SQUID working as a trigger. It represents the minimum external magnetic flux required to induce a switching from the metastable zero voltage state to the dissipative one.

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/content/aip/journal/apl/94/6/10.1063/1.3078519
2009-02-09
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Supercurrent decay in nano-superconducting quantum interference devices for intrinsic magnetic flux resolution
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/6/10.1063/1.3078519
10.1063/1.3078519
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