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Showing 1–7 of 7 results
Advanced filters: Author: Guangyang Dai Clear advanced filters

  • Cholecystectomy is associated with an increased risk of colorectal cancer, and the underlying mechanism remains elusive. Here, the authors show that cholecystectomy-related microbiome and bile acid alterations disrupts the FXR/β-catenin interaction, and ultimately exacerbates colorectal tumorigenesis.

    • Bo Tang
    • Shengpeng Li
    • Shiming Yang
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-17

  • Despite the discovery of Majorana zero modes (MZM) in iron-based superconductors, sample inhomogeneity may destroy MZMs during braiding. Here, authors observe MZM in impurity-assisted vortices due to tuning of the bulk Dirac fermions in a homogeneous superconductor LiFeAs.

    • Lingyuan Kong
    • Lu Cao
    • Hong Ding
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-11

  • Multiple different types of topological states are observed in iron-based high-temperature superconductors. This suggests that these may be a good place to try and engineer high-temperature topological superconductivity.

    • Peng Zhang
    • Zhijun Wang
    • Shik Shin
    Research
    Nature Physics
    Volume: 15, P: 41-47

  • We observed a pressure-induced semiconductor-metal transition, which was followed by the emergence of superconductivity in the nonsymmorphic topological insulator KHgAs. The superconducting transition temperature reaches a maximum of approximately 6.6 K at 31.8 GPa, after which it slightly decreases up to 55 GPa. We identified the pressure-induced phase transitions and determined the structures of three high-pressure phases of KHgAs through structure prediction. Our findings establish the high-pressure phase diagram of the hourglass fermion compound KHgAs and demonstrate the potential coexistence of superconductivity with a topologically nontrivial feature protected by nonsymmorphic symmetries.

    • Guangyang Dai
    • Yating Jia
    • Changqing Jin
    ResearchOpen Access
    NPG Asia Materials
    Volume: 15, P: 1-8

  • A new quasi 1D compound Ba3TiTe5 was synthesized at high pressure and high temperature, which has been evidenced to be a well-defined 1D conductor. Here, for Ba3TiTe5, in-situ high-pressure techniques were employed to study the emerging physics dependent on interchain hopping, such as the Umklapp scattering effect, SDW/CDW, superconductivity and non-Fermi Liquid behavior. The pressure induced superconductivity was observed. It is suggested that the appearance of superconductivity is associated with the fluctuation due to the suppression of Umklapp gap and the enhancement of Tc is related with the fluctuation of the SDW/CDW.

    • Jun Zhang
    • Yating Jia
    • Changqing Jin
    ResearchOpen Access
    NPG Asia Materials
    Volume: 11, P: 1-10