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Zero-Energy Modes from Coalescing Andreev States in a Two-Dimensional Semiconductor-Superconductor Hybrid Platform
- Source :
- Phys. Rev. Lett. 119, 176805 (2017)
- Publication Year :
- 2017
-
Abstract
- We investigate zero-bias conductance peaks that arise from coalescing subgap Andreev states, consistent with emerging Majorana zero modes, in hybrid semiconductor-superconductor wires defined in a two-dimensional InAs/Al heterostructure using top-down lithography and gating. The measurements indicate a hard superconducting gap, ballistic tunneling contact, and in-plane critical fields up to $3$~T. Top-down lithography allows complex geometries, branched structures, and straightforward scaling to multicomponent devices compared to structures made from assembled nanowires.<br />Comment: Includes Supplementary Material
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 119, 176805 (2017)
- Publication Type :
- Report
- Accession number :
- edsarx.1703.03699
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.119.176805