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The electrical conductivity of bundles of superconducting nanowires produced by laser ablation of metals in superfluid helium
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10.1063/1.4742330
/content/aip/journal/apl/101/5/10.1063/1.4742330
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/5/10.1063/1.4742330
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The photos of the low-temperature cell. The bundles of nanowires (a) which were grown inside HeII between gilt electrodes separated by 3 mm are seen by eye, provided laser irradiation time is long enough (shown by arrow). Note the shrinking of the bundle in a gas when liquid helium level comes down (b). The bundle photo made with optical microscope can be found in Ref. 3.

Image of FIG. 2.
FIG. 2.

TEM images of fragments of nanowire bundles made of tin (a), indium (b), and lead (c). Nanowires of different metals display different structures: tin nanowires composed of attached polycrystals with crystallite sizes of 2 nm (d), indium wire are fused to each other monocrystals (e), lead nanowires oxidized in air so that only traces of nanowires are seen in the electron microscope (f).

Image of FIG. 3.
FIG. 3.

The temperature dependence of resistance for the bundles of nanowires of tin (a), indium (b), and lead (c). Arrows indicate the direction of temperature change (up-heating, down-cooling) Vertical dotted lines indicate the temperatures of superconducting transition in the bulk. The insets show the temperature dependence of derivative dR(T)/dT. The behavior of the nanowires resistance near the low-temperature border of superconducting transition for lead is shown in more detail.

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/content/aip/journal/apl/101/5/10.1063/1.4742330
2012-08-02
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The electrical conductivity of bundles of superconducting nanowires produced by laser ablation of metals in superfluid helium
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/5/10.1063/1.4742330
10.1063/1.4742330
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