Hybrid superconductor-quantum point contact devices using InSb nanowires
Abstract
Proposals for studying topological superconductivity and Majorana bound states in a nanowire proximity coupled to superconductors require that transport in the nanowire is ballistic. Previous works on hybrid nanowire-superconductor systems have shown evidence for Majorana bound states, but these experiments were also marked by disorder, which disrupts ballistic transport. In this paper, we demonstrate ballistic transport in the InSb nanowires interfaced directly with superconducting Al by observing quantized conductance at zero-magnetic field. Additionally, we demonstrate that the nanowire is proximity coupled to the superconducting contacts by observing Andreev reflection. These results are important steps for robustly establishing topological superconductivity in the InSb nanowires.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 05, 2016
- Source ID
- 10.1063/1.4971394
Entities
People
- D. Car
- E. P. A. M. Bakkers
- J. Damasco
- Nadya Mason
- S. T. Gill
Organizations
- Delft University of Technology
- Eindhoven University of Technology
- Office of Naval Research
- University of Illinois Urbana–Champaign