Defect-related Optical and Electronic Properties of Ion-bombarded Hexagonal Boron Nitride

ORAL

Abstract

Hexagonal boron nitride (hBN), a well-known 2-dimensional (2D) Van der Waals material, is emerging as an attractive platform for spin-based nanoscale applications, owing to its defect-related single-photon emitters (SPE) and their recently shown magneto-optical response. Unfortunately, only a small fraction of emitters displays possible spin-selective transitions, while their atomic structures remain elusive. We report on work towards circumventing some of these limitations by implanting rare-earth impurities. Cerium (Ce3+) bombarded hBN flakes show a distribution of isolated defects with broadened spectral features (centered at ~ 575 nm), good optical stability and strong magneto-optical response when excited via circularly polarized light. These results help pave the way towards defect engineering in low-dimensional materials for applications in opto-electronics, nanoscale sensing and quantum information processing.
A. L. Exarhos, D. A. Hopper, R. N. Patell, M. W. Doherty, L. C. Bassett, Nat. Comm. 10, 222 (2019)
A. Gottscholl, M. Kianinia, V. Soltamov, C. Bradac, C. Kasper, et. al., arXiv:1906.03774 (2019)

*G.I.L.M and N.V.P acknowledge funding from CREST IDEALS, NSF-1547830. V.M.M. and C.A.M acknowledge support from the National Science foundation (USA) through grant NSF-1906096

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Presenters

  • Gabriel López-Morales

    • Chemistry PhD Program, The Graduate Center, City University of New York

Authors

  • Gabriel López-Morales

    • Chemistry PhD Program, The Graduate Center, City University of New York

  • Mingxing Li

    • Physics, The City College of New York

  • Harishankar Jayakumar

    • Physics, The City College of New York
    • The City College of New York

  • Nicholas Proscia

    • Physics, The City College of New York
    • The City College of New York

  • Daniela Pagliero

    • Physics, The City College of New York
    • The City College of New York

  • Gustavo E Lopez

    • Chemistry, Lehman College of New York

  • Vinod M Menon

    • Physics, The City College of New York
    • The City College of New York

  • Carlos Meriles

    • Physics, The City College of New York
    • The City College of New York
    • City College of New York
    • Department of Physics, City College of New York