Current-voltage dependencies in ultra-narrow superconducting nanowires in the regime of quantum fluctuations

We have studied current-voltage characteristics of ultra-narrow superconducting aluminium nanowires governed by quantum fluctuations of the order parameter. In this regime a quasi-one-dimensional superconducting channel is in a resistive state well below the critical temperature. It has been found t...

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Bibliographic Details
Published in:Journal of physics. Conference series 2008-02, Vol.97 (1), p.012113
Main Authors: Zgirski, M, Riikonen,, K -P, Arutyunov, K Yu
Format: Article
Language:English
Subjects:
Aluminum
Critical temperature
Current voltage characteristics
Expanding universe theory
Nanowires
Order parameters
Physics
Superconductivity
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Summary:We have studied current-voltage characteristics of ultra-narrow superconducting aluminium nanowires governed by quantum fluctuations of the order parameter. In this regime a quasi-one-dimensional superconducting channel is in a resistive state well below the critical temperature. It has been found that the V(I) characteristics show-up non-monotonous dependency which is very strongly affected by temperature and/or external magnetic field. The origin of the effect is not clear.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/97/1/012113