# Quantum melting of generalized electron crystal in twisted bilayer MoSe2

https://mdr.nims.go.jp/datasets/2cbcb793-8ebc-4534-b08c-7edcf6117e93

## File

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## Id

2cbcb793-8ebc-4534-b08c-7edcf6117e93

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-05-17T00:54:39.335149Z

## Updated at

2026-05-18T00:50:24.194106Z

## Published at

2026-05-18T03:23:11.144645Z

## Doi



## First published url

https://doi.org/10.1038/s41467-025-59365-2

## Date published

2025-04-30

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Quantum melting of generalized electron crystal in twisted bilayer MoSe2
  title_type: original
  lang: en

## Description

- description: Electrons can form an ordered solid crystal phase ascribed to the interplay
    between Coulomb repulsion and kinetic energy [1, 2]. Tuning these energy scales
    can drive a phase transition from electron solid to liquid, i.e. quantum melting
    of a Wigner crystal [3–6]. Two-dimensional moiré superlattices have become a fertile
    platform to observe generalized Wigner crystals [7, 8], which have so far been
    studied by optical [9–11] and scanning-probe-based methods [12–16] in p-type transition-metal
    dichalcogenides (TMDs). Using transport measurements to investigate Wigner states
    is vital to a complete characterization, however, it still poses a significant
    challenge due to problems in making reliable electrical contacts, particularly
    difficult for n-type materials like MoSe2. Here, we report the electrical transport
    observation of generalized Wigner crystal states at ν = 2/5, 1/2, 3/5, and 2/3
    electron fillings of a moiré unit cell in twisted bilayer MoSe2. We find that
    these states are spin-polarized and that with the application of an out-of-plane
    magnetic field, additional states emerge at 8/9, 10/9, and 4/3 fillings. We further
    observe that these generalized Wigner crystal states can undergo continuous quantum
    melting transitions to liquid phases, manifested by a quantum critical scaling
    behaviors. The Mott state at ν = 1 exhibits different transition behaviors, which
    is associated with Pomeranchuk effect. Our findings establish twisted bilayer
    MoSe2 as a novel system to study strongly correlated states of matter and their
    quantum phase transitions.
  description_type: abstract
  lang: und

## Creator

- name: Qi Jun Zong
  role: author
- name: Haolin Wang
  role: author
- name: Qi Zhang
  role: author
- name: Xinle Cheng
  role: author
- name: Yangchen He
  role: author
- name: Qiaoling Xu
  role: author
- name: Ammon Fischer
  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: Daniel A. Rhodes
  role: author
- name: Lede Xian
  role: author
- name: Dante M. Kennes
  role: author
- name: Angel Rubio
  role: author
- name: Geliang Yu
  role: author
- name: Lei Wang
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: quantum melting
  schema: not_defined
- subject: 'Wigner crystal
    '
  schema: not_defined
- subject: twisted bilayer MoSe2
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/
  date_licensed: 2025-04-30

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '16'
  start_page: 4058
  end_page: 4058
  article_number: '4058'

## Conference



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## Instrument



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Fileset

- id: 9efd611f-9b98-409c-9b4d-36c2c1172226
  filename: s41467-025-59365-2.pdf
  content_type: application/pdf
  size: 3869185
  md5: a145e165cbe11666900601bc08ca16e8

## Thumbnail

fileset_id: 9efd611f-9b98-409c-9b4d-36c2c1172226
filename: s41467-025-59365-2.pdf