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Showing 1–4 of 4 results
Advanced filters: Author: Shin-ichiro Ideta Clear advanced filters

  • Topological state in Kondo insulators has been provoked in SmB6, but the origin of surface states and topological order remain elusive. Here, Hagiwara et al. report temperature dependent reconstruction of a metallic surface state on the (001) surface of YbB12driven by Kondo effect and discuss its origin from topology.

    • Kenta Hagiwara
    • Yoshiyuki Ohtsubo
    • Shin-ichi Kimura
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-7

  • The authors present ARPES measurements on the triple-layer cuprate superconductor Bi2Sr2Ca2Cu3O10+δ. They find that, although the doping level of the inner CuO2 plane is extremely low in under-doped samples, the d-wave superconducting gap is enhanced at the antinode and persists well above Tc without a Fermi arc, indicating a “nodal metal”.

    • Shin-ichiro Ideta
    • Shintaro Adachi
    • Atsushi Fujimori
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Samarium hexaboride has unusual electronic properties that have been suggested to arise from topological effects. Here the authors present spin-resolved ARPES measurements of the (111) surface and observe surface states that may give insight into the bulk topological properties.

    • Yoshiyuki Ohtsubo
    • Yuki Yamashita
    • Shin-ichi Kimura
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7