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Showing 1–6 of 6 results
Advanced filters: Author: Pranava K. Sivakumar Clear advanced filters

  • Fermionic currents of opposing chirality can be spatially filtered without the need for a magnetic field using the quantum geometry of topological bands in single-crystal PdGa.

    • Anvesh Dixit
    • Pranava K. Sivakumar
    • Stuart S. P. Parkin
    ResearchOpen Access
    Nature
    Volume: 649, P: 47-52

  • This study reports a strong chiral induced spin selectivity effect in a polymer bearing only one centrochiral group, with the chiral information transmitted over a distance of 4-6 nm through a 310-helical polymer composed of achiral amino acids.

    • Matthias Rohmer
    • Yishen Xie
    • Wolfgang H. Binder
    ResearchOpen Access
    Communications Materials
    P: 1-10

  • J.-K. Kim et al. study vertical Josephson junctions where the weak link is Td-WTe2 and the superconductor is NbSe2. The use of an inversion-symmetry-breaking Td-WTe2 weak link allows the authors to demonstrate the intrinsic origin of the observed Josephson non-reciprocity in these devices.

    • Jae-Keun Kim
    • Kun-Rok Jeon
    • Stuart S. P. Parkin
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-8

  • A Josephson diode is made by fabricating an inversion symmetry breaking van der Waals heterostructure of NbSe2/Nb3Br8/NbSe2, demonstrating that even without a magnetic field, the junction can be superconducting with a positive current but resistive with a negative current.

    • Heng Wu
    • Yaojia Wang
    • Mazhar N. Ali
    Research
    Nature
    Volume: 604, P: 653-656

  • This work reports on the observation of a large Josephson diode effect in a type-II Dirac semimetal 1T-PtTe2. The magnitude of the Josephson diode effect is found to be related to an asymmetry of the critical supercurrent which is modeled as a phase shift between the first and second harmonic terms of the current-phase relationship and can be tuned by an external magnetic field.

    • Pranava K. Sivakumar
    • Mostafa T. Ahari
    • Stuart S. P. Parkin
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-12