# Transport Anisotropy in One-Dimensional Graphene Superlattice in the High Kronig-Penney Potential Limit

https://mdr.nims.go.jp/datasets/13959dbc-c165-4e2d-9dd2-c5dab3955087

## File

- [2024A00178G_Li_Ferro GSL_PRL_accepted.pdf](https://mdr.nims.go.jp/filesets/71bb385d-4d15-41bf-9361-cd41eb319c6c/download) ([Detail](https://mdr.nims.go.jp/filesets/71bb385d-4d15-41bf-9361-cd41eb319c6c.md))

## Id

13959dbc-c165-4e2d-9dd2-c5dab3955087

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-27T06:25:27.156456Z

## Updated at

2025-08-27T23:30:27.088016Z

## Published at

2025-08-27T23:18:02.575549Z

## Doi



## First published url

https://doi.org/10.1103/physrevlett.132.056204

## Date published

2024-01-31

## Recorded date published

2024-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Transport Anisotropy in One-Dimensional Graphene Superlattice in the High
    Kronig-Penney Potential Limit
  title_type: original
  lang: en

## Description

- description: "One-dimensional graphene superlattice subjected to strong Kronig-Penney
    (KP) potential is promising for achieving the electron-lensing effect, while previous
    studies utilizing the modulated dielectric gates can only yield a moderate, spatially
    dispersed potential profile. Here, we realize high KP potential modulation of
    graphene via nanoscale ferroelectric domain gating. Graphene transistors are fabricated
    on PbZr<sub>0.2</sub>Ti<sub>0.8</sub>O<sub>3</sub> back-gates patterned with periodic,
    100-200 nm wide stripe domains. Due to band reconstruction, the h-BN top-gating
    induces satellite Dirac points in samples with current along the superlattice
    vector \U0001D460̂, a feature absent in samples with current perpendicular to
    \U0001D460̂. The satellite Dirac point position scales with the superlattice period
    (L) as ∝ \U0001D43F<sup>\U0001D6FD</sup>, with β = -1.18±0.06. These results can
    be well explained by the high KP potential scenario, with the Fermi velocity perpendicular
    to \U0001D460̂ quenched to about 1% of that for pristine graphene. Our study presents
    a promising material platform for realizing electron supercollimation and investigating
    flat band phenomena."
  description_type: abstract
  lang: en

## Creator

- name: Tianlin Li
  role: author
- name: Hanying Chen
  role: author
- name: Kun Wang
  role: author
- name: Yifei Hao
  role: author
- name: Le Zhang
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Xia Hong
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Graphene superlattice
  schema: not_defined
- subject: Kronig-Penney potential
  schema: not_defined
- subject: Satellite Dirac points
  schema: not_defined

## Rights

- description: "© 2024 American Physical Society"
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review Letters
  issn: '10797114'
  volume: '132'
  issue: '5'
  article_number: '056204'

## Conference



## Related item



## Funding

- identifier: DE-SC0016153
  funder_name: U.S. Department of Energy
- identifier: 20H00354
  funder_name: Japan Society for the Promotion of Science
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: 'ECCS: 2025298'
  funder_name: National Science Foundation
- identifier: OIA-2044049
  funder_name: NSF EPSCoR
- funder_name: World Premier International Research Center Initiative
- funder_name: Nebraska Research Initiative
- funder_name: Nebraska Center for Energy Sciences Research

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Fileset

- id: 71bb385d-4d15-41bf-9361-cd41eb319c6c
  filename: 2024A00178G_Li_Ferro GSL_PRL_accepted.pdf
  content_type: application/pdf
  size: 2788407
  md5: 71b7b426f9615d479f4a61fca93daf2d

## Thumbnail

fileset_id: 71bb385d-4d15-41bf-9361-cd41eb319c6c
filename: 2024A00178G_Li_Ferro GSL_PRL_accepted.pdf