# Tuning Quantum Phase Transitions at Half Filling in <math display="inline">  <mrow>    <mn>3</mn>    <mi>L</mi>    <mtext>−</mtext>    <msub>      <mrow>        <mi>MoTe</mi>      </mrow>      <mrow>        <mn>2</mn>      </mrow>    </msub>    <mo>/</mo>    <msub>      <mrow>        <mi>WSe</mi>      </mrow>      <mrow>        <mn>2</mn>      </mrow>    </msub>  </mrow></math> Moiré Superlattices

https://mdr.nims.go.jp/datasets/6f2c461d-e777-40e9-b2dd-c906ec62f04b

## File

- [PhysRevX.12.041015.pdf](https://mdr.nims.go.jp/filesets/f2a109c9-b9ea-4b0e-a827-cfa1aea7563a/download) ([Detail](https://mdr.nims.go.jp/filesets/f2a109c9-b9ea-4b0e-a827-cfa1aea7563a.md))

## Id

6f2c461d-e777-40e9-b2dd-c906ec62f04b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-27T07:00:32.438819Z

## Updated at

2025-02-28T07:30:23.574767Z

## Published at

2025-02-28T07:30:23.939784Z

## Doi



## First published url

https://doi.org/10.1103/physrevx.12.041015

## Date published

2022-11-09

## Recorded date published

2022-11

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Tuning Quantum Phase Transitions at Half Filling in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"
    display="inline"><mml:mrow><mml:mn>3</mml:mn><mml:mi mathvariant="normal">L</mml:mi><mml:mtext>−</mml:mtext><mml:msub><mml:mrow><mml:mi>MoTe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:mo>/</mml:mo><mml:msub><mml:mrow><mml:mi>WSe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
    Moiré Superlattices
  title_type: original
  lang: en

## Description

- description: Many sought-after exotic states of matter are known to emerge close
    to quantum phase transitions, such as quantum spin liquids and unconventional
    superconductivity. It is, thus, desirable to experimentally explore systems that
    can be continuously tuned across these transitions. Here, we demonstrate such
    tunability and the electronic correlation effects in triangular moire ́ superlattices
    formed between trilayer MoTe2 and monolayer WSe2 (3L-MoTe2 =WSe2 ). Through transport
    measurements, we observe an electronic analog of the Pomeranchuk effect at half
    filling of the first moire ́ subband, where increasing temperature paradoxically
    enhances charge localization. At low temperatures the system exhibits the characteristic
    of a Fermi liquid with strongly renormalized effective mass, suggesting a correlated
    metal state. The state is highly susceptible to out-of-plane electric and magnetic
    fields, which induce a Lifshitz transition and a metal-insulator transition (MIT),
    respectively. It enables identification of a tricritical point in the quantum
    phase diagram at the base temperature. We explain the Lifshitz transition in terms
    of interlayer charge transfer under the vertical electric field, which leads to
    the emergence of a new Fermi surface and immediate suppression of the Pomeranchuk
    effect. The existence of quantum criticality in the magnetic-field-induced MIT
    is supported by scaling behaviors of the resistance. Our work shows the 3L-MoTe2=WSe2
    lies in the vicinity to the MIT point of the triangular lattice Hubbard model,
    rendering it a unique system to manifest the rich correlation effects at an intermediate
    interaction strength.
  description_type: abstract
  lang: und

## Creator

- name: Mingjie Zhang
  role: author
- name: Xuan Zhao
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Zheng Zhu
  role: author
- name: Fengcheng Wu
  role: author
- name: Yongqing Li
  role: author
- name: Yang Xu
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Quantum phase transitions
  schema: not_defined
- subject: electronic correlation
  schema: not_defined
- subject: triangular moiré superlattices
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review X
  issn: '21603308'
  volume: '12'
  issue: '4'
  article_number: '041015'

## Conference



## Related item



## Funding

- identifier: 2021YFA1401300
  funder_name: National Key Research and Development Program of China
- identifier: '12174439'
  funder_name: National Natural Science Foundation of China
- identifier: '12074375'
  funder_name: National Natural Science Foundation of China
- identifier: XDB28000000
  funder_name: Chinese Academy of Sciences
- identifier: XDB33000000
  funder_name: Chinese Academy of Sciences
- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: JPMJCR15F3
  funder_name: Core Research for Evolutional Science and Technology
- funder_name: Japan Science and Technology Agency

## 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



## Software



## Custom property



## Fileset

- id: f2a109c9-b9ea-4b0e-a827-cfa1aea7563a
  filename: PhysRevX.12.041015.pdf
  content_type: application/pdf
  size: 1620526
  md5: 2c750a21c7df36e4a8f17bad2987f90d

## Thumbnail

fileset_id: f2a109c9-b9ea-4b0e-a827-cfa1aea7563a
filename: PhysRevX.12.041015.pdf