Quantized conductance and its correlation to the supercurrent in a nanowire connected to superconductors.
Nano Lett
; 13(8): 3614-7, 2013 Aug 14.
Article
en En
| MEDLINE
| ID: mdl-23898893
ABSTRACT
We report conductance and supercurrent of InAs nanowires coupled to Al-superconducting electrodes with short channel lengths and good Ohmic contacts. The nanowires are suspended 15 nm above a local gate electrode. The charge density in the nanowires can be controlled by a small change in the gate voltage. For large negative gate voltages, the number of conducting channels is reduced gradually, and we observe a stepwise decrease of both conductance and critical current before the conductance vanishes completely.
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01-internacional
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MEDLINE
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En
Revista:
Nano Lett
Año:
2013
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Article
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Suecia