From moiré ferroelectricity to defect arrays in a twisted hBN heterostructure

ORAL

Abstract

Hexagonal boron nitride (hBN) recently generated significant interest, namely due to its ability to host defects capable of single quantum emission and out-of-plane ferroelectricity. Using low energy microscopy techniques such as Photoemission Electron Microscopy (PEEM) and Low Energy Electron Microscopy (LEEM), we map the real space electronic distribution in a twisted hBN sample, providing high resolution imaging of defect distribution along ferroelectric domains of our sample. We find that ferroelectric domains present a unique opportunity to address and manipulate defects at the micro- and nanoscale.

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Publication: Manuscript in preparation

Presenters

  • Jacques Gabriel Hawecker

    • Okinawa Institute of Science and Technology

Authors

  • Jacques Gabriel Hawecker

    • Okinawa Institute of Science and Technology

  • Prajakta Kokate

    • Okinawa Institute of Science and Technology

  • Filchito R Bagsican

    • Okinawa Institute of Science and Technology

  • Marisa Hocking

    • Stanford Institute for Materials & Energy Sciences, Stanford University
    • Stanford University

  • Kenji Watanabe

    • National Institute for Materials Science
    • NIMS
    • Research Center for Functional Materials, National Institute for Materials Science
    • Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • Research Center for Functional Materials, National Institute of Material Science, Tsukuba, Japan
    • National Institute of Materials Science
    • Advanced Materials Laboratory, National Institute for Materials Science

  • Takashi Taniguchi

    • National Institute for Materials Science
    • International Center for Materials Nanoarchitectonics, National Institute for Materials Science
    • Research Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan
    • International Center for Materials Nanoarchitectonics, National Institute of Material Science, Tsukuba, Japan
    • Advanced Materials Laboratory, National Institute for Materials Science

  • Julien Madéo

    • Okinawa Institute of Science & Technology
    • Okinawa Institute of Science and Technology

  • Michael. K. L. Man

    • Okinawa Institute of Science & Technology
    • Okinawa Institute of Science and Technology

  • Andrew J Mannix

    • Stanford Institute for Materials & Energy Sciences, Stanford University
    • Stanford University

  • Keshav M Dani

    • Okinawa Institute of Science and Technology