IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-26072-7.html
   My bibliography  Save this article

Nanoscale lattice dynamics in hexagonal boron nitride moiré superlattices

Author

Listed:
  • S. L. Moore

    (Columbia University)

  • C. J. Ciccarino

    (Harvard University)

  • D. Halbertal

    (Columbia University)

  • L. J. McGilly

    (Columbia University)

  • N. R. Finney

    (Columbia University)

  • K. Yao

    (Columbia University)

  • Y. Shao

    (Columbia University)

  • G. Ni

    (Columbia University)

  • A. Sternbach

    (Columbia University)

  • E. J. Telford

    (Columbia University)

  • B. S. Kim

    (Columbia University)

  • S. E. Rossi

    (Columbia University)

  • K. Watanabe

    (National Institute for Materials Science)

  • T. Taniguchi

    (National Institute for Materials Science)

  • A. N. Pasupathy

    (Columbia University)

  • C. R. Dean

    (Columbia University)

  • J. Hone

    (Columbia University)

  • P. J. Schuck

    (Columbia University)

  • P. Narang

    (Harvard University)

  • D. N. Basov

    (Columbia University)

Abstract

Twisted two-dimensional van der Waals (vdW) heterostructures have unlocked a new means for manipulating the properties of quantum materials. The resulting mesoscopic moiré superlattices are accessible to a wide variety of scanning probes. To date, spatially-resolved techniques have prioritized electronic structure visualization, with lattice response experiments only in their infancy. Here, we therefore investigate lattice dynamics in twisted layers of hexagonal boron nitride (hBN), formed by a minute twist angle between two hBN monolayers assembled on a graphite substrate. Nano-infrared (nano-IR) spectroscopy reveals systematic variations of the in-plane optical phonon frequencies amongst the triangular domains and domain walls in the hBN moiré superlattices. Our first-principles calculations unveil a local and stacking-dependent interaction with the underlying graphite, prompting symmetry-breaking between the otherwise identical neighboring moiré domains of twisted hBN.

Suggested Citation

  • S. L. Moore & C. J. Ciccarino & D. Halbertal & L. J. McGilly & N. R. Finney & K. Yao & Y. Shao & G. Ni & A. Sternbach & E. J. Telford & B. S. Kim & S. E. Rossi & K. Watanabe & T. Taniguchi & A. N. Pas, 2021. "Nanoscale lattice dynamics in hexagonal boron nitride moiré superlattices," Nature Communications, Nature, vol. 12(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26072-7
    DOI: 10.1038/s41467-021-26072-7
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-26072-7
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-26072-7?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Dorri Halbertal & Simon Turkel & Christopher J. Ciccarino & Jonas B. Profe & Nathan Finney & Valerie Hsieh & Kenji Watanabe & Takashi Taniguchi & James Hone & Cory Dean & Prineha Narang & Abhay N. Pas, 2022. "Unconventional non-local relaxation dynamics in a twisted trilayer graphene moiré superlattice," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26072-7. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.