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Showing 1–4 of 4 results
Advanced filters: Author: Kumpei Imamura Clear advanced filters

  • The authors employ zero-field muon spin relaxation to study time-reversal symmetry breaking (TRSB) in FeSe1−xTex. For x = 0.64 with the highest superconducting transition temperature Tc = 14.5 K, which is known to host a topological surface state and Majorana zero modes within vortices, they find a TRSB superconducting state in the bulk.

    • Masaki Roppongi
    • Yipeng Cai
    • Takasada Shibauchi
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • The heavy-fermion superconductor UTe2 likely exhibits spin-triplet Cooper pairing, although a singlet component is possible. Here, using magnetic penetration depth measurements, the authors find evidence consistent with chiral B3u+iAu spin-triplet superconductivity in UTe2.

    • Kota Ishihara
    • Masaki Roppongi
    • Takasada Shibauchi
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-7

  • Kagome metal family, AV3Sb5(A = K, Rb, Cs), provide a platform to probe the interplay between superconductivity (SC) and charge density waves (CDW) and whether it is competitive or complementary. Here, the authors find a contrasting behavior that, while the superconductivity in A = Cs is susceptible to disorder, that in A = K, Rb is stabilized by disorder due to the competitive nature between the CDW and SC states. They attribute the results to the different CDW patterns in A = Cs and A = K, Rb, highlighting crucial role of CDW order to the SC order parameters in the kagome family.

    • Takuya Nagashima
    • Kota Ishihara
    • Takasada Shibauchi
    ResearchOpen Access
    Communications Physics
    Volume: 8, P: 1-8