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American Institute of Physics, Applied Physics Letters, 25(103), p. 252601

DOI: 10.1063/1.4851240

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Nonlinear current-voltage characteristics due to quantum tunneling of phase slips in superconducting Nb nanowire networks

Journal article published in 2013 by M. Trezza, C. Cirillo, P. Sabatino, G. Carapella ORCID, S. L. Prischepa ORCID, C. Attanasio
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This paper is available in a repository.

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Abstract

We report on the transport properties of an array of N about 30 interconnected Nb nanowires, grown by sputtering on robust porous Si substrates. The analyzed system exhibits a broad resistive transition in zero magnetic field, H, and highly nonlinear V(I) characteristics as a function of H which can be both consistently described by quantum tunneling of phase slips. ; Comment: accepted for publication on Appl. Phys. Lett