Journal
PHYSICAL REVIEW LETTERS
Volume 119, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.119.176805
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Funding
- Microsoft Project Q
- Danish National Research Foundation
- Villum Foundation
- Marie Curie Fellowship [659653]
- Marie Curie Actions (MSCA) [659653] Funding Source: Marie Curie Actions (MSCA)
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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.
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