High Critical-Current Superconductor-InAs Nanowire-Superconductor Junctions
Journal article, 2012

We report on the fabrication of InAs nanowires coupled to superconducting leads with high critical current and widely tunable conductance. We implemented a double lift off nanofabrication Method to get very short nanowire devices with Ohmic contacts. We observe very high critical. currents of up to 800 nA in a wire with a diameter of 80 nm. The current- voltage characteristics of longer and suspended nanowires display,either. Coulomb blockade or supercurrent depending on a local gate voltage, combining different regimes of transport in a single device.

devices

InAs nanowires

Andreep reflection

Coulomb blockade

supercurrent

supercurrent

josephson-junctions

Author

Simon Abay

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

H. Nilsson

Lund University

Fan Wu

Chalmers, Microtechnology and Nanoscience (MC2)

H. Q. Xu

Peking University

Lund University

Christopher Wilson

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Per Delsing

Chalmers, Microtechnology and Nanoscience (MC2), Quantum Device Physics

Nano Letters

1530-6984 (ISSN) 1530-6992 (eISSN)

Vol. 12 11 5622-5625

Subject Categories

Chemical Sciences

DOI

10.1021/nl302740f

More information

Latest update

2/7/2019 1