Progress in Superconductivity
- Volume 9 Issue 2
- /
- Pages.136-139
- /
- 2008
- /
- 1229-4764(pISSN)
Superconducting Junctions of InAs Semiconductor Nanowires
- Doh, Yong-Joo (Kavli Institute of Nanoscience, Delft University of Technology) ;
- Franceschi, Silvano De (LaTEQs laboratory, DSM/DRFMC/SPSMS CEA-Grenoble) ;
- van Dam, Jorden A. (Kavli Institute of Nanoscience, Delft University of Technology) ;
- Bakkers, Erik P. A. M. (Philips Research Laboratories) ;
- Kouwenhoven, Leo P. (Kavli Institute of Nanoscience, Delft University of Technology)
- Published : 2008.04.30
Abstract
InAs semiconductor nanowires can provide a promising platform to integrate superconducting quantum circuit, which exploits tunable supercurrent under the operation of gate voltage. We report temperature and magnetic field dependence of the nanowire superconducting junctions, which is in agreement with the proximity-effect theory of superconductor-normal metal-superconductor weak link. Superconducting coherence length of the InAs nanowire is estimated from the fit and magnetic-field dependence of the critical current and the subgap structure of dI/dV is discussed as well.