# Parity-independent Kondo effect of correlated electrons in electrostatically defined ZnO quantum dots

https://mdr.nims.go.jp/datasets/17b66109-c28b-4a13-8659-ea65034e4b31

## File

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## Id

17b66109-c28b-4a13-8659-ea65034e4b31

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-11T07:21:53.874050Z

## Updated at

2024-11-12T07:30:30.100197Z

## Published at

2024-11-12T07:30:30.386006Z

## Doi



## First published url

https://doi.org/10.1038/s41467-024-53890-2

## Date published

2024-11-07

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Parity-independent Kondo effect of correlated electrons in electrostatically
    defined ZnO quantum dots
  title_type: original
  lang: en

## Description

- description: Quantum devices such as spin qubits have been extensively investigated
    in electrostatically confined quantum dots using high-quality semiconductor heterostructures
    like GaAs and Si. Here, we present a demonstration of electrostatically forming
    the quantum dots in ZnO heterostructures. Through the transport measurement, we
    uncover the distinctive signature of the Kondo effect independent of the even-odd
    electron number parity, which contrasts with the typical behavior of the Kondo
    effect in GaAs. By analyzing temperature and magnetic field dependences, we find
    that the absence of the even-odd parity in the Kondo effect is not straightforwardly
    interpreted by the considerations developed for conventional semiconductors. We
    propose that, based on the unique parameters of ZnO, electron correlation likely
    plays a fundamental role in this observation. Our study not only clarifies the
    physics of correlated electrons in the quantum dot but also holds promise for
    applications in quantum devices, leveraging the unique features of ZnO.
  description_type: abstract
  lang: und

## Creator

- name: Kosuke Noro
  role: author
  orcid: https://orcid.org/0009-0001-6532-5792
- name: Yusuke Kozuka
  role: author
  orcid: https://orcid.org/0000-0001-7674-600X
- name: Kazuma Matsumura
  role: author
- name: Takeshi Kumasaka
  role: author
- name: Yoshihiro Fujiwara
  role: author
- name: Atsushi Tsukazaki
  role: author
  orcid: https://orcid.org/0000-0003-0251-063X
- name: Masashi Kawasaki
  role: author
  orcid: https://orcid.org/0000-0001-6397-4812
- name: Tomohiro Otsuka
  role: author
  orcid: https://orcid.org/0000-0003-2532-643X

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: ZnO quantum dot
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '15'
  article_number: '9556'

## Conference



## Related item



## Funding

- funder_name: MEXT | Japan Society for the Promotion of Science

## 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: e67faa5a-3448-4e3c-984e-f6c336a92a74
  filename: s41467-024-53890-2.pdf
  content_type: application/pdf
  size: 1503998
  md5: c6a45910a62ec81c7d0a38e6919d3cbc

## Thumbnail

fileset_id: e67faa5a-3448-4e3c-984e-f6c336a92a74
filename: s41467-024-53890-2.pdf