Michotte, Sébastien
[UCL]
Mátéfi-Tempfli, Stefan
[UCL]
Piraux, Luc
[UCL]
We report on the transport properties of single superconducting lead nanowires grown by an electrodeposition technique, embedded in a nanoporous track-etched polymer membrane. The nanowires are granular, have a uniform diameter of similar to40 nm and a very large aspect ratio (similar to500). The diameter of the nanowires is small enough to ensure a one-dimensional superconducting regime in a wide temperature range below T-c. The non-zero resistance in the superconducting state and its variation caused by fluctuations of the superconducting order parameter were measured versus temperature, magnetic field, and applied dc current (or voltage). The current-induced breakdowns in the voltage-current characteristics may be explained by the formation of phase slip centres. Moreover, dc voltage driven measurements reveal the existence of a new S-shape behaviour near the formation of these phase slip centres.
Bibliographic reference |
Michotte, Sébastien ; Mátéfi-Tempfli, Stefan ; Piraux, Luc. Investigation of superconducting properties of nanowires prepared by template synthesis. In: Superconductor Science & Technology, Vol. 16, no. 5, p. 557-561 (2003) |
Permanent URL |
http://hdl.handle.net/2078.1/40993 |