Proximity-Induced Superconductivity in CdTe-HgTe Core-Shell Nanowires.
basic_science · Level V
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- Record sourced from PubMed, PMID 31120766.
- Also identified by DOI 10.1021/acs.nanolett.9b01472.
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Abstract
In this Letter we report on proximity superconductivity induced in CdTe-HgTe core-shell nanowires, a quasi-one-dimensional heterostructure of the topological insulator HgTe. We demonstrate a Josephson supercurrent in our nanowires contacted with superconducting Al leads. The observation of a sizable I<sub>c</sub> R<sub>n</sub> product, a positive excess current, and multiple Andreev reflections up to fourth order further indicate a high interface quality of the junctions.