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The electrical conductivity of bundles of superconducting nanowires produced by laser ablation of metals in superfluid helium
The temperature dependencies of the electrical resistance are reported for bundles of permalloy, indium, tin, and lead nanowires having a similar diameter of about 8 nm which were grown by catalytic coagulation of laser ablation products in quantized vortices of superfluid helium. In all metals, the...
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Published in: | Applied physics letters 2012-07, Vol.101 (5), p.52605 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The temperature dependencies of the electrical resistance are reported for bundles of permalloy, indium, tin, and lead nanowires having a similar diameter of about 8 nm which were grown by catalytic coagulation of laser ablation products in quantized vortices of superfluid helium. In all metals, the constant residual resistance found at low temperatures changes to a superlinear growth at higher temperatures. For all superconducting nanowires, the transition to superconductivity is broadened with a width of delta T = 0.6 K. The size shift of the transition center Delta T is largest for lead, Delta T = -2 K, whereas for indium and tin Delta T is 0.2 K and |
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ISSN: | 0003-6951 1077-3118 |
DOI: | 10.1063/1.4742330 |