# Atomic-Scale Observation of Moiré potential in Twisted Hexagonal Boron Nitride Layers by Electron Microscopy

https://mdr.nims.go.jp/datasets/97c3003f-9a7e-4d52-85a8-8d5c64717290

## File

- [Manuscript.pdf](https://mdr.nims.go.jp/filesets/c0e5bf60-299e-4e4c-8f95-a51b6c122415/download) ([Detail](https://mdr.nims.go.jp/filesets/c0e5bf60-299e-4e4c-8f95-a51b6c122415.md))

## Id

97c3003f-9a7e-4d52-85a8-8d5c64717290

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-04-14T02:11:59.231042Z

## Updated at

2025-04-17T07:15:36.206316Z

## Published at

2026-04-14T23:25:05.879014Z

## Doi

https://doi.org/10.48505/nims.5432

## First published url

https://doi.org/10.1021/acs.jpcc.5c00804

## Date published

2025-04-24

## Recorded date published

2025-4-24

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Atomic-Scale Observation of Moiré potential in Twisted Hexagonal Boron Nitride
    Layers by Electron Microscopy
  title_type: original
  lang: en

## Description

- description: Moiré superlattices (MSLs) are an emerging class of two-dimensional
    functional materials whose electronic states can be tuned by the twist angle between
    two van der Waals layers and/or the relative placement of the layers. The intriguing
    properties of MSLs are closely correlated to the moiré potential, which is the
    electrostatic potential induced by interlayer coupling. Intensive efforts have
    been made to understand the nature and distribution of the moiré potential by
    using various experimental and theoretical techniques. However, the experimental
    observation of the moiré potential is still challenging because of the possible
    presence of the surface and/or interlayer contaminants. In this work, we develop
    a method to obtain hexagonal boron nitride (hBN) nanolayers (with or without twist)
    using a specially designed chemical exfoliation technique. The resulting hBN nanolayers
    are atomically clean and strain free, hence providing ideal MSLs for the investigation
    of their moiré potential. Aberration-corrected high resolution transmission electron
    microscopy measurements on the twisted hBN nanolayers allow us to observe moiré
    diffraction spots in Fourier space. Then, the moiré potential is reconstructed
    by the inverse fast Fourier transform of the moiré diffraction spots. It has been
    revealed that the local interlayer atomic overlap plays a decisive role in determining
    the periodicity and distribution of the moiré potential, as supported by density
    functional theory calculations. This work not only provides a general strategy
    to observe the moiré potential in MSLs, but it also expands the application of
    electron microscopy to the further study of MSLs with atomic resolution.
  description_type: abstract
  lang: eng

## Creator

- name: Rina Mishima
  role: author
  organization: Graduate School of Science, Kobe University
- name: Takuro Nagai
  role: author
  orcid: https://orcid.org/0000-0001-5239-3334
  organization: National Institute for Materials Science
  department: Research Network and Facility Services Division/Materials Fabrication
    and Analysis Platform/Electron Microscopy Unit
- name: Hiroyo Segawa
  role: author
  orcid: https://orcid.org/0000-0002-7198-8410
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Functional Materials
    Field/Amorphous Material Group
- name: Masahiro Ehara
  role: author
  organization: Institute for Molecular Science
- name: Takashi Uchino
  role: author
  organization: Graduate School of Science, Kobe University

## Contact agent



## Publisher

organization: American Chemical Society

## Managing organization



## Keyword

- subject: hexagonal boron nitride (hBN)
  schema: not_defined
- subject: Moiré superlattices
  schema: not_defined
- subject: Moiré potential
  schema: not_defined
- subject: two-dimensional functional material
  schema: not_defined
- subject: aberration-corrected TEM
  schema: not_defined
- subject: density functional theory calculation
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in JOURNAL OF PHYSICAL CHEMISTRY C, copyright © 2025
    American Chemical Society after peer review and technical editing by the publisher.
    To access the final edited and published work see https://doi.org/10.1021/acs.jpcc.5c00804.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

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## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-04-15
end_date: 2026-04-16

## Journal

- title: JOURNAL OF PHYSICAL CHEMISTRY C
  issn: '19327447'

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## Fileset

- id: c0e5bf60-299e-4e4c-8f95-a51b6c122415
  filename: Manuscript.pdf
  content_type: application/pdf
  size: 4309409
  md5: 51f7dbeca8022d0a61f4ed58ec94e6be

## Thumbnail

fileset_id: c0e5bf60-299e-4e4c-8f95-a51b6c122415
filename: Manuscript.pdf