Journal
SCIENCE
Volume 367, Issue 6485, Pages 1442-+Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aav3392
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Funding
- Microsoft
- Danish National Research Foundation
- European Commission
- National Science Foundation (NSF) [PHY-1607611]
- State Key Laboratory of High Performance Computing, China
- NSF Division of Materials Research grant [1603243]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1603243] Funding Source: National Science Foundation
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Hybrid semiconductor-superconductor nanowires have emerged as a promising platform for realizing topological superconductivity (TSC). Here, we present a route to TSC using magnetic flux applied to a full superconducting shell surrounding a semiconducting nanowire core. Tunneling into the core reveals a hard induced gap near zero applied flux, corresponding to zero phase winding, and a gapped region with a discrete zero-energy state around one applied flux quantum, corresponding to 2p phase winding. Theoretical analysis indicates that the winding of the superconducting phase can induce a transition to a topological phase supporting Majorana zero modes. Measured Coulomb blockade peak spacing around one flux quantum shows a length dependence that is consistent with the existence of Majorana modes at the ends of the nanowire.
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