# Evidence of Mott insulator with thermally induced melting behavior in kagome compound Nb3Cl8

https://mdr.nims.go.jp/datasets/03a9756f-cc4a-4c1f-9fe9-47505f30384f

## File

- [nwaf464.pdf](https://mdr.nims.go.jp/filesets/64c90dbe-b1b9-4ab4-b091-b6d7508587f3/download) ([Detail](https://mdr.nims.go.jp/filesets/64c90dbe-b1b9-4ab4-b091-b6d7508587f3.md))

## Id

03a9756f-cc4a-4c1f-9fe9-47505f30384f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-15T02:42:46.587913Z

## Updated at

2026-02-17T03:30:36.943434Z

## Published at

2026-02-17T00:10:57.728591Z

## Doi



## First published url

https://doi.org/10.1093/nsr/nwaf464

## Date published

2025-11-10

## Recorded date published

2025-11-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Evidence of Mott insulator with thermally induced melting behavior in kagome
    compound Nb3Cl8
  title_type: original
  lang: en

## Description

- description: "The kagome lattice provides a playground to explore novel correlated
    quantum states due to the presence of flat bands in its electronic structure.
    Recently discovered layered kagome compound Nb3Cl8 has been proposed as a Mott
    insulator coming from the half-filled flat band. Here we have carried out systematic
    transport study to uncover the evidence of Mott insulator in Nb3Cl8 thin flakes.
    Bipolar semiconducting property with Fermi level close to conduction band has
    been revealed. We have further probed the chemical potential of Nb3Cl8 by tracing
    the charge neutrality point of the monolayer graphene proximate to Nb3Cl8. The
    gap of Nb3Cl8 flakes is approximately \U0001D7CF. \U0001D7CF\U0001D7CE \U0001D41E\U0001D415
    at \U0001D7CF\U0001D7CE\U0001D7CE \U0001D40A and shows pronounced temperature
    dependence, decreasing substantially with increasing temperature to ~\U0001D7CE.
    \U0001D7D4\U0001D7D1 \U0001D41E\U0001D415 at \U0001D7D1\U0001D7CE\U0001D7CE \U0001D40A
    . The melting behavior of the gapped state is in consistent with theoretically
    proposed Mott insulator in Nb3Cl8. Our work has demonstrated Nb3Cl8 as a promising
    platform to study strongly correlated physics at relatively high temperature."
  description_type: abstract
  lang: und

## Creator

- name: Qiu Yang
  role: author
- name: Min Wu
  role: author
- name: Jingyi Duan
  role: author
- name: Zhijie Ma
  role: author
- name: Lingxiao Li
  role: author
- name: Zihao Huo
  role: author
- name: Zaizhe 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: Xiaoxu Zhao
  role: author
- name: Yi Chen
  role: author
- name: Youguo Shi
  role: author
- name: Wei Jiang
  role: author
- name: Kaihui Liu
  role: author
- name: Xiaobo Lu
  role: author

## Contact agent



## Publisher

organization: Oxford University Press (OUP)

## Managing organization



## Keyword

- subject: 'Mott insulator
    '
  schema: not_defined
- subject: 'kagome compound
    '
  schema: not_defined
- subject: 'Nb3Cl8
    '
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-11-04

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: National Science Review
  issn: 2053714X
  volume: '12'
  issue: '12'
  article_number: nwaf464

## Conference



## Related item



## Funding

- identifier: 2024YFA1409002
  funder_name: National Key Research and Development Program of China
- identifier: 2022YFA1403500
  funder_name: National Key Research and Development Program of China
- identifier: 2024YFA140840
  funder_name: National Key Research and Development Program of China
- identifier: '12274006'
  funder_name: National Natural Science Foundation of China
- identifier: '12141401'
  funder_name: National Natural Science Foundation of China
- identifier: '12404044'
  funder_name: National Natural Science Foundation of China
- identifier: 2021B0301030002
  funder_name: Guangdong Major Project of Basic and Applied Basic Research
- identifier: 2023M730100
  funder_name: Postdoctoral Science Foundation

## 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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## Custom property



## Fileset

- id: 64c90dbe-b1b9-4ab4-b091-b6d7508587f3
  filename: nwaf464.pdf
  content_type: application/pdf
  size: 6911929
  md5: fd95aec947744ff6d08bd2e86585e9cb

## Thumbnail

fileset_id: 64c90dbe-b1b9-4ab4-b091-b6d7508587f3
filename: nwaf464.pdf