Co-Doped BaFe2As2 Superconducting Nanowires for Detector Applications
2018
Nanowires of Co-doped BaFe
2
As
2
have been realized and characterized. Thin films having thickness of 20 nm were grown on CaF
2
(100) substrates by pulsed laser deposition. The films were then passivated in situ with a thin layer of MgAl
2
O
4
. Using electron beam lithography, several submicron nanowire structures were patterned and electrically contacted to gold pads. The nanostructures have a superconducting critical temperature T of 16 K, for a 500-nm-wide nanowire, and properties, in terms of normal state resistivity (0.3 mΩ·cm) and critical current (1 MA/cm
2
at 3 K), comparable with those of NbN nanowires. Moreover, they show localization effects in the normal state, while the current-voltage characteristics are dominated by flux creep.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
2
Citations
NaN
KQI