Journal
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume 516, Issue -, Pages 44-49Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physc.2015.06.010
Keywords
Superconductivity; Thin nanowires; Superfluid helium; Vortices
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Funding
- Russian Science Foundation (RSF) [14-13-00574]
- NSF [ECCS-14-08558]
- RFBR [13-03-00788]
- Russian Science Foundation [14-13-00574] Funding Source: Russian Science Foundation
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Nanowires of niobium, platinum and indium-lead In88Pb12 alloy with diameters of 4.2, 3.6 and 8 nm, respectively, were grown in quantized vortices of superfluid helium, and the dependences of their resistance on temperature have been studied. Through a detailed comparison of these dependences we present evidence that superconducting niobium wires allow a high rate of quantum phase slip. This phase slippage leads to a phase transition to an insulating state at T -> 0. (C) 2015 Elsevier B.V. All rights reserved.
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