Supercurrent transport through 1e -periodic full-shell Coulomb islands
Source abstract
Abstract
We experimentally investigate supercurrent through Coulomb islands, where island and leads are fabricated from semiconducting nanowires with fully surrounding superconducting shells. Applying flux along the wire yields a series of destructive Little-Parks lobes with reentrant supercurrent. We find Coulomb blockade with $2e$ peak spacing in the zeroth lobe and $1e$ average spacing, with regions of significant even-odd modulation, in the first lobe. Evolution of Coulomb-peak amplitude through the first lobe is consistent with a theoretical model of supercurrent carried predominantly by zero-energy states in the leads and the island.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Physics of Superconductivity and Magnetism · Quantum and electron transport phenomena · Topological Materials and Phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen, Denmark
Division of Solid State Physics and NanoLund, Lund University, 22100 Lund, Sweden
Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
Funding
Villum Fonden · Danmarks Grundforskningsfond · H2020 European Research Council · NanoLund, Lunds Universitet
References (59)
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