Sharp defect-induced emission peaks in vanadium doped WSe<sub>2</sub>

ORAL

Abstract



The availability of optically-active quantum defects is one of the building blocks towards quantum information science applications. Two-dimensional (2D) materials such as transition metal dichalcogenides (TMDs) emerge as a promising platform to host such quantum defects owing to their intrinsic quantum confinement, long expected spin coherence time and strong spin-orbit coupling (SOC). Vanadium doped WSe2 has been studied for its long-ranged magnetic behaviors and exhibits promising emission signatures for quantum technologies. In this work, we examine the emission peaks in V-doped WSe2 and its magnetic field response through experimental characterization and use first-principles computations to provide insight for their origins.

*U.S. Department of Energy, Office of Science, Basic Energy Sciences in Quantum Information Science under Award Number DE-SC0022289 National Energy Research Scientific Computing Center under Contract No. DE-AC02-05CH11231 

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Presenters

  • Weiru Chen

    • Dartmouth College

Authors

  • Weiru Chen

    • Dartmouth College

  • Yihuang Xiong

    • Dartmouth College

  • Elyse Barre

    • Lawrence Berkeley National Laboratory

  • Daria Blach

    • Lawrence Berkeley National Laboratory

  • Garima Gupta

    • Lawrence Berkeley National Laboratory

  • Leyi Loh

    • National University of Singapore

  • Chen Yuan

    • National University of Singapore

  • Kenji Watanabe

    • National Institute for Materials Science
    • Research Center for Functional Materials, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan

  • Takashi Taniguchi

    • National Institute for Materials Science
    • Research Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • International Center for Materials Nanoarchitectonics, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan
    • Research Center for Functional Materials, National Institute of Materials Science, 1-1 Namiki Tsukuba, Ibaraki 305-0044, Japan

  • Eda Goki

    • National University of Singapore

  • Archana Raja

    • Lawrence Berkeley National Laboratory

  • Geoffroy Hautier

    • Dartmouth College