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Showing 1–8 of 8 results
Advanced filters: Author: G. Lapertot Clear advanced filters

  • Each valley of the mini-Brillouin zone ("mini valley") of twisted bilayer graphene (TBG) contains two Dirac cones that hybridize to form flat bands. Theory predicts that these two Dirac cones have the same chirality, leading to topological obstruction. Here, the authors confirm this prediction experimentally.

    • F. Mesple
    • P. Mallet
    • V. T. Renard
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-5

  • Nuclear magnetic resonance measurements reveal two separate relaxation channels—one associated with a Fermi liquid state and the other with a non-Fermi liquid state—coexisting near a quantum phase transition in YbRh2Si2.

    • S. Kambe
    • H. Sakai
    • R. E. Walstedt
    Research
    Nature Physics
    Volume: 10, P: 840-844

  • Understanding the strange metal behavior, characterized by linear-in-temperature resistivity, could shed light on the mechanism of unconventional superconductivity. Here, by using electrical resistivity measurements into the micro-Kelvin regime, the authors report evidence of unconventional superconductivity in the strange metal YbRh2Si2 and propose a possible pairing mechanism.

    • D. H. Nguyen
    • A. Sidorenko
    • S. Paschen
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • The recent discovery of superconductivity with an unusually high upper critical field in the heavy fermion system UTe2 has incited enormous interest in this material as one of the rare known spin-triplet superconductors with potentials for topological superconductivity and quantum computing. In this work, the authors report evidence for enhanced superconductivity and multiple superconducting phases in UTe2 under hydrostatic pressure, revealing a very rich phase landscape in this material.

    • D. Braithwaite
    • M. Vališka
    • D. Aoki
    ResearchOpen Access
    Communications Physics
    Volume: 2, P: 1-6

  • In a magnetic field, superconductivity can be induced or reinforced near a metamagnetic transition, where ferromagnetic fluctuations are suspected to mediate the pairing strength of the Cooper pairs. Here, the authors investigate the superconductor UTe2 and report on the variation in the superconducting properties as the magnetic field is applied along two particular crystallographic axes and their relation to metamagnetism.

    • W. Knafo
    • M. Nardone
    • D. Braithwaite
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-9