# Charge-transfer contacts for the measurement of correlated states in high-mobility WSe2

https://mdr.nims.go.jp/datasets/28345929-d126-4ac2-909f-0c495bf53c60

## File

- [2024A00850G_2310.19782v1.pdf](https://mdr.nims.go.jp/filesets/ed13f786-b049-48a9-808b-09857c38e7fb/download) ([Detail](https://mdr.nims.go.jp/filesets/ed13f786-b049-48a9-808b-09857c38e7fb.md))

## Id

28345929-d126-4ac2-909f-0c495bf53c60

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-07-30T02:47:32.336111Z

## Updated at

2025-07-30T07:30:33.246900Z

## Published at

2025-07-30T07:18:00.803258Z

## Doi



## First published url

https://doi.org/10.1038/s41565-024-01702-5

## Date published

2024-07-25

## Recorded date published

2024-7

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Charge-transfer contacts for the measurement of correlated states in high-mobility
    WSe2
  title_type: original
  lang: en

## Description

- description: Two-dimensional semiconductors, such as transition metal dichalcogenides,
    have demonstrated tremendous promise for the development of highly tunable quantum
    devices. Realizing this potential requires low-resistance electrical contacts
    that perform well at low temperatures and low densities where quantum properties
    are relevant. Here we present a new device architecture for two-dimensional semiconductors
    that utilizes a charge-transfer layer to achieve large hole doping in the contact
    region, and implement this technique to measure the magnetotransport properties
    of high-purity monolayer WSe2. We measure a record-high hole mobility of 80,000 cm2 V–1 s–1
    and access channel carrier densities as low as 1.6 × 1011 cm−2, an order of magnitude
    lower than previously achievable. Our ability to realize transparent contact to
    high-mobility devices at low density enables transport measurements of correlation-driven
    quantum phases including the observation of a low-temperature metal–insulator
    transition in a density and temperature regime where Wigner crystal formation
    is expected and the observation of the fractional quantum Hall effect under large
    magnetic fields. The charge-transfer contact scheme enables the discovery and
    manipulation of new quantum phenomena in two-dimensional semiconductors and their
    heterostructures.
  description_type: abstract
  lang: en

## Creator

- name: Jordan Pack
  role: author
- name: Yinjie Guo
  role: author
- name: Ziyu Liu
  role: author
- name: Bjarke S. Jessen
  role: author
- name: Luke Holtzman
  role: author
- name: Song Liu
  role: author
- name: Matthew Cothrine
  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: David G. Mandrus
  role: author
- name: Katayun Barmak
  role: author
- name: James Hone
  role: author
- name: Cory R. Dean
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Two-dimensional semiconductors
  schema: not_defined
- subject: Charge-transfer contact
  schema: not_defined
- subject: "- Fractional Quantum Hall Effect"
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Nanotechnology
  issn: '17483395'
  volume: '19'
  issue: '7'
  start_page: 948
  end_page: 954

## Conference



## Related item



## Funding

- identifier: DMR-1420634
  funder_name: National Science Foundation
- identifier: DMR-2011738
  funder_name: National Science Foundation
- identifier: 21H05233
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: DE-SC0016703
  funder_name: DOE | Office of Science
- identifier: DE-SC0016703
  funder_name: DOE | Office of Science
- identifier: DE-SC0016703
  funder_name: DOE | Office of Science
- identifier: DE-SC0016703
  funder_name: DOE | Office of Science
- identifier: DE-SC0016703
  funder_name: DOE | Office of Science
- identifier: DE-SC0016703
  funder_name: DOE | Office of Science
- identifier: GBMF10277
  funder_name: Gordon and Betty Moore Foundation
- identifier: GBMF9069
  funder_name: Gordon and Betty Moore Foundation
- identifier: GBMF9069
  funder_name: Gordon and Betty Moore Foundation
- identifier: GBMF10277
  funder_name: Gordon and Betty Moore Foundation
- identifier: DMR-1420634
  funder_name: National Science Foundation
- identifier: DMR-2011738
  funder_name: National Science Foundation
- identifier: DMR-1420634
  funder_name: National Science Foundation
- identifier: DMR-2011738
  funder_name: National Science Foundation
- identifier: 23H02052
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: 21H05233
  funder_name: MEXT | Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: MEXT | Japan Society for the Promotion of Science

## Instrument



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## Measurement method



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## Chemical composition



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## Fileset

- id: ed13f786-b049-48a9-808b-09857c38e7fb
  filename: 2024A00850G_2310.19782v1.pdf
  content_type: application/pdf
  size: 2755051
  md5: 75e9091101fed155e0ba1812d8c266ef

## Thumbnail

fileset_id: ed13f786-b049-48a9-808b-09857c38e7fb
filename: 2024A00850G_2310.19782v1.pdf