Pressure-Driven Evolution of Magnetic Structure and Emergent Superconductivity in Magnetic Topological Insulator

ORAL

Abstract

The discovery of superconductivity in magnetic topological insulators (MTIs) is of broad interest due to its potential to unlock new quantum phases and applications, particularly in quantum computing and spintronics. In this work, we provide evidence of the pressure-driven evolution of magnetic and lattice structures, alongside the possible pressure-induced superconductivity in MTIs. Using magnetoresistance, DC magnetic susceptibility, and X-ray diffraction measurements in diamond anvil cells, we construct a comprehensive temperature-pressure phase diagram, revealing complex pressure-dependent changes in magnetic ground states, superconductivity, and structural phases. We also discuss the factors that might contribute to superconductivity across this material system.

*Work at Ames National Laboratory is supported by the US DOE, Basic Energy Sciences, Material Science and Engineering Division under contract no. DE-AC02-07CH11358.

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Presenters

  • Shuyuan huyan

    • Ames National Laboratory

Authors

  • Shuyuan huyan

    • Ames National Laboratory

  • Tiema Qian

    • University of California, Los Angeles

  • Chaowei Hu

    • University of Washington
    • University of California, Los Angeles

  • Lin-Lin Wang

    • Ames National Laboratory and Iowa State University
    • Ames National Laboratory

  • Atreyee Das

    • Ames National Laboratory

  • Juan Schmidt

    • Ames National Laboratory
    • Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University

  • Hunter Kantelis

    • University of Alabama at Birmingham

  • Dongzhou Zhang

    • Argonne National Laboratory

  • Yixuan Huang

    • RIKEN

  • Tyler J Slade

    • Ames National Laboratory

  • Raquel A. Ribeiro

    • Iowa State University

  • Wenli Bi

    • University of Alabama at Birmingham

  • Ni Ni

    • University of California, Los Angeles

  • Sergey L Bud'ko

    • Iowa State University
    • Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University
    • Ames National Laboratory and Iowa State University

  • Paul C Canfield

    • Iowa State University
    • Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University
    • Ames National Laboratory and Iowa State University