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Showing 1–9 of 9 results
Advanced filters: Author: Wolfgang Belzig Clear advanced filters

  • Experiments reveal a previously unreported type of electronic noise that is caused by temperature gradients. The finding has practical implications, and could help in detecting unwanted hotspots in electrical circuits.

    • Elke Scheer
    • Wolfgang Belzig
    News & Views
    Nature
    Volume: 562, P: 200-201

  • Carbon nanotubes are not superconductors but they can carry a supercurrent injected from a superconducting contact. Analysis of the tunnelling spectra of a nanotube connecting two superconductors reveals details of the bound electron–hole states that carry such a supercurrent.

    • Wolfgang Belzig
    News & Views
    Nature Physics
    Volume: 6, P: 940-941

  • Spectroscopic evidence of equal-spin triplet Cooper pairs is still missing so far. Here, Diesch et al. propose a unique signature for the presence of equal-spin triplet pairs and experimentally reveal the spin configuration of triplet pairs at the Al/EuS interface.

    • S. Diesch
    • P. Machon
    • E. Scheer
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-8

  • The authors study Andreev bound states (ABSs) in 3-terminal InAs/Al Josephson-junction devices. They find signatures of hybridization between two ABSs, with band structure tunable by electric currents that generate magnetic fluxes threading superconducting loops in the device.

    • Marco Coraiola
    • Daniel Z. Haxell
    • Fabrizio Nichele
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • The authors study conductance replicas emerging under microwave irradiation in the tunnelling spectrum of Josephson junctions in InAs/Al heterostructures, focusing on distinguishing the signatures of Floquet-Andreev states (FASs) from those of photon-assisted tunneling (PAT). They establish that PAT largely dominates the response to microwave radiation in their device.

    • Daniel Z. Haxell
    • Marco Coraiola
    • Fabrizio Nichele
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Many features of a superconductor are encoded in the Josephson effect and understanding changes at the local level can help explain related phenomena. Here, the authors use scanning tunnelling microscopy to study local changes in the Josephson effect and how they relate to the transport channel configuration.

    • Jacob Senkpiel
    • Simon Dambach
    • Klaus Kern
    ResearchOpen Access
    Communications Physics
    Volume: 3, P: 1-6

  • Magnet-superconductor heterostructures provide a means to engineer unconventional spin-triplet Cooper pairs using ordinary superconductors. Here, a magnet-superconductor bilayer is predicted to host a composite quasiparticle consisting of spinful Cooper pairs coupled to a magnon excitation.

    • Irina V. Bobkova
    • Alexander M. Bobkov
    • Wolfgang Belzig
    ResearchOpen Access
    Communications Materials
    Volume: 3, P: 1-7