# Anomalous Landau Level Gaps Near Magnetic Transitions in Monolayer <math display="inline">  <mrow>    <msub>      <mrow>        <mi>WSe</mi>      </mrow>      <mrow>        <mn>2</mn>      </mrow>    </msub>  </mrow></math>

https://mdr.nims.go.jp/datasets/2a2430d1-27e5-47a1-ac13-af52178d9dc5

## File

- [PhysRevX.14.031018.pdf](https://mdr.nims.go.jp/filesets/34901907-4296-4464-8bb0-9663751ae074/download) ([Detail](https://mdr.nims.go.jp/filesets/34901907-4296-4464-8bb0-9663751ae074.md))

## Id

2a2430d1-27e5-47a1-ac13-af52178d9dc5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-04T07:23:57.077807Z

## Updated at

2025-02-05T03:30:48.037522Z

## Published at

2025-02-05T03:30:48.144185Z

## Doi



## First published url

https://doi.org/10.1103/physrevx.14.031018

## Date published

2024-08-01

## Recorded date published

2024-8

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Anomalous Landau Level Gaps Near Magnetic Transitions in Monolayer <mml:math
    xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><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>
  title_type: original
  lang: en

## Description

- description: First-order phase transitions produce abrupt changes to the character
    of both ground and excited electronic states. Here we conduct electronic compressibility
    measurements to map the spin phase diagram and Landau level (LL) energies of monolayer
    WSe2 in a magnetic field. We resolve a sequence of first- order phase transitions
    between completely spin-polarized LLs and states with LLs of both spins. Unexpectedly,
    the LL gaps are roughly constant over a wide range of magnetic fields below the
    transitions, which we show reflects spin-polarized ground states with opposite
    spin excitations. These transitions also extend into compressible regimes, with
    a sawtooth boundary between full and partial spin polarization. We link these
    observations to the important influence of LL filling on the exchange energy beyond
    a smooth density-dependent contribution. Our results show that WSe2 realizes a
    unique hierarchy of energy scales where such effects induce reentrant magnetic
    phase transitions tuned by density and magnetic field.
  description_type: abstract
  lang: und

## Creator

- name: Benjamin A. Foutty
  role: author
  orcid: https://orcid.org/0009-0000-5158-6097
- name: Vladimir Calvera
  role: author
  orcid: https://orcid.org/0000-0002-8888-1759
- name: Zhaoyu Han
  role: author
  orcid: https://orcid.org/0000-0002-1778-6906
- name: Carlos R. Kometter
  role: author
- name: Song Liu
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
- name: James C. Hone
  role: author
- name: Steven A. Kivelson
  role: author
- name: Benjamin E. Feldman
  role: author
  orcid: https://orcid.org/0000-0002-4962-0548

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Phase transitions
  schema: not_defined
- subject: spin phase diagram
  schema: not_defined
- subject: WSe2
  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: '14'
  issue: '3'
  article_number: '031018'

## Conference



## Related item



## Funding

- identifier: NSF-DMR-2103910
  funder_name: Division of Materials Research
- identifier: DE-SC0023109
  funder_name: Office of Science
- funder_name: U.S. Department of Energy
- identifier: DE-AC02-76SF00515
  funder_name: Basic Energy Sciences
- identifier: 20H00354
  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-2026822
  funder_name: National Science Foundation
- identifier: DMR-2011738
  funder_name: NSF MRSEC
- funder_name: World Premier International Research Center Initiative
- funder_name: Stanford Nano Shared Facilities

## Instrument



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## Fileset

- id: 34901907-4296-4464-8bb0-9663751ae074
  filename: PhysRevX.14.031018.pdf
  content_type: application/pdf
  size: 5138917
  md5: eb0e70ebe91f83161a64b5799746f13b

## Thumbnail

fileset_id: 34901907-4296-4464-8bb0-9663751ae074
filename: PhysRevX.14.031018.pdf