2024
DOI: 10.1021/acs.nanolett.4c02055
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Shadowed versus Etched Superconductor–Semiconductor Junctions in Al/InAs Nanowires

Joachim E. Sestoft,
Mikelis Marnauza,
Dags Olsteins
et al.

Abstract: Hybrid semiconductor−superconductor nanowires have emerged as a cornerstone in modern quantum devices. Integrating such nanowires into hybrid devices typically requires extensive postgrowth processing which may affect device performance unfavorably. Here, we present a technique for in situ shadowing superconductors on nanowires and compare the structural and electronic properties of Al junctions formed by shadowing versus etching. Based on transmission electron microscopy, we find that typical etching procedur… Show more

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