Bi<sub>4</sub>Br<sub>4</sub>-based high-temperature quantum spin Hall physics

ORAL

Abstract

The manifestation of quantum phenomena at room temperatures is a major challenge but also a major goal in physics, and this is particularly true for the quantum spin Hall effect. Here we report the theoretical demonstration of a variety of high-temperature (and in some cases even room-temperature) quantum spin Hall systems based on Bi4Br4, a rare higher-order topological insulator identified recently. We also common on the key experimental studies.

*This work is supported by the Army Research Office under grant number W911NF-18-1-0416, by the National Science Foundation under grant numbers DMR-1945351 through the CAREER program, DMR-1921581 through the DMREF program, and DMR-2105139 through the CMP program, by the National Research Foundation of Korea under grant number 2018R1A2B6007837, and by the Creative-Pioneering Researchers Program through Seoul National University.

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Presenters

  • Chiho Yoon

    • Seoul Natl Univ

Authors

  • Chiho Yoon

    • Seoul Natl Univ

  • Yanfeng Zhou

    • University of Texas at Dallas

  • Hongki Min

    • Seoul Natl Univ

  • Fan Zhang

    • University of Texas at Dallas