# Optically Probing Unconventional Superconductivity in Atomically Thin Bi<sub>2</sub>Sr<sub>2</sub>Ca<sub>0.92</sub>Y<sub>0.08</sub>Cu<sub>2</sub>O<sub>8+δ</sub>

https://mdr.nims.go.jp/datasets/ac548462-82c1-4ac4-957e-b9d7d5795f3c

## File

- [2024A00394G_manuscript_revised_unmarked.pdf](https://mdr.nims.go.jp/filesets/d5d7dee8-7d13-4608-9a6e-00e900c70531/download) ([Detail](https://mdr.nims.go.jp/filesets/d5d7dee8-7d13-4608-9a6e-00e900c70531.md))

## Id

ac548462-82c1-4ac4-957e-b9d7d5795f3c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-08-27T00:35:14.402252Z

## Updated at

2025-08-27T03:30:33.765559Z

## Published at

2025-08-27T03:18:06.684824Z

## Doi



## First published url

https://doi.org/10.1021/acs.nanolett.4c00559

## Date published

2024-04-03

## Recorded date published

2024-4-3

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Optically Probing Unconventional Superconductivity in Atomically Thin Bi<sub>2</sub>Sr<sub>2</sub>Ca<sub>0.92</sub>Y<sub>0.08</sub>Cu<sub>2</sub>O<sub>8+δ</sub>
  title_type: original
  lang: en

## Description

- description: 'Atomically thin cuprates exhibiting a superconducting phase transition
    temperature similar to bulk have recently been realized, although the device fabrication
    remains a challenge and limits the potential for many novel studies and applications.
    Here we use an optical pump-probe approach to noninvasively study the unconventional
    superconductivity in atomically thin Bi<sub>2</sub>Sr<sub>2</sub>Ca<sub>0.92</sub>Y<sub>0.08</sub>Cu<sub>2</sub>O<sub>8+δ</sub>
    (Y-Bi2212). Apart from finding an optical response due to the superconducting
    phase transition that is similar to bulk Y-Bi2212, we observe that the sign and
    amplitude of the pump-probe signal in the atomically thin flake vary significantly
    in different dielectric environments depending on the nature of the optical excitation.
    By exploiting the spatial resolution of the optical probe, we uncover the exceptional
    sensitivity of monolayer Y-Bi2212 to the environment. Our results provide the
    first optical evidence for the intralayer nature of the superconducting condensate
    in Bi2212, and highlight the role of double-sided encapsulation in preserving
    superconductivity in atomically thin cuprates. '
  description_type: abstract
  lang: en

## Creator

- name: Yunhuan Xiao
  role: author
- name: Jingda Wu
  role: author
- name: Jerry I. Dadap
  role: author
- name: Kashif Masud Awan
  role: author
- name: Dongyang Yang
  role: author
- name: Jing Liang
  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: Marta Zonno
  role: author
- name: Martin Bluschke
  role: author
- name: Hiroshi Eisaki
  role: author
- name: Martin Greven
  role: author
- name: Andrea Damascelli
  role: author
- name: Ziliang Ye
  role: author

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: 2D materials
  schema: not_defined
- subject: cuprate
  schema: not_defined
- subject: high-Tc superconductivity
  schema: not_defined
- subject: optical pump-probe spectroscopy
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in Nano Letters, copyright © 2024 American Chemical
    Society after peer review and technical editing by the publisher. To access the
    final edited and published work see https://doi.org/10.1021/acs.nanolett.4c00559.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-03-19
end_date: 2025-03-19

## Journal

- title: Nano Letters
  issn: '15306984'
  volume: '24'
  issue: '13'
  start_page: 3986
  end_page: 3993

## Conference



## Related item



## Funding

- funder_name: Minist?re de la D?fense Nationale
- identifier: GBMF11071
  funder_name: Gordon and Betty Moore Foundation
- funder_name: Canada Foundation for Innovation
- funder_name: Canada Research Chairs
- identifier: DE-SC0016371
  funder_name: U.S. Department of Energy
- funder_name: Canada First Research Excellence Fund
- funder_name: Natural Sciences and Engineering Research Council of Canada
- funder_name: Canadian Institute for Advanced Research
- funder_name: British Columbia Knowledge Development Fund
- funder_name: Quantum Materials and Future Technologies Program
- funder_name: Max Planck-UBC-UTokyo Center for Quantum Materials

## Instrument



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## 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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## Fileset

- id: d5d7dee8-7d13-4608-9a6e-00e900c70531
  filename: 2024A00394G_manuscript_revised_unmarked.pdf
  content_type: application/pdf
  size: 901364
  md5: 2fc1b546fc84687cf3e91a0b9421dc2e

## Thumbnail

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filename: 2024A00394G_manuscript_revised_unmarked.pdf