# Formation of few-electron triple quantum dots in ZnO heterostructures

https://mdr.nims.go.jp/datasets/b4a6cc98-b6c6-47f1-b93f-55b84143b884

## Files

- [s41598-025-20567-9.pdf](https://mdr.nims.go.jp/filesets/721183e0-2974-4b3a-b891-4a4b3e365c6e/download) ([Detail](https://mdr.nims.go.jp/filesets/721183e0-2974-4b3a-b891-4a4b3e365c6e.md))

## Id

b4a6cc98-b6c6-47f1-b93f-55b84143b884

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-10-23T07:37:44.026484Z

## Updated at

2025-10-23T23:30:21.740216Z

## Published at

2025-10-23T23:18:42.498404Z

## Doi



## First published url

https://doi.org/10.1038/s41598-025-20567-9

## Date published

2025-10-21

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Formation of few-electron triple quantum dots in ZnO heterostructures
  title_type: original
  lang: en

## Description

- description: "In recent years, advancements in semiconductor manufacturing technology
    have enabled the formation of high-quality, high-mobility two-dimensional electron
    gases in zinc oxide (ZnO) heterostructures, making the electrostatic formation
    of quantum dots possible. ZnO, with its low natural abundance of isotopes possessing
    nuclear spin and its direct bandgap, is considered a \r\npotentially suitable
    material for quantum bit applications. In this study, we achieve the formation
    of triple quantum dots and the realization of a few-electron state in ZnO heterostructure
    devices. We also confirm that by varying the gate voltage between the quantum
    dots, it is possible to control the interdot spacing. Additionally, we observe
    a tunneling phenomenon called a \r\nquantum cellular automata effect, where multiple
    electrons move simultaneously, which is not seen in single or double quantum dots,
    due to Coulomb interactions. Our results demonstrate that ZnO nanostructures have
    reached a level where they can function as controllable multiple quantum dot systems."
  description_type: abstract
  lang: und

## Creator

- name: Koichi Baba
  role: author
- name: Kosuke Noro
  role: author
- name: Yusuke Kozuka
  role: author
  orcid: https://orcid.org/0000-0001-7674-600X
- name: Takeshi Kumasaka
  role: author
- name: Motoya Shinozaki
  role: author
- name: Masashi Kawasaki
  role: author
- name: Tomohiro Otsuka
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 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: Scientific Reports
  issn: '20452322'
  volume: '15'
  issue: '1'
  article_number: '36612'

## Conference



## Related item



## Funding

- funder_name: 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: 721183e0-2974-4b3a-b891-4a4b3e365c6e
  filename: s41598-025-20567-9.pdf
  content_type: application/pdf
  size: 2017109
  md5: d651b2081f463c9708b118739c22a8a4

## Thumbnail

fileset_id: 721183e0-2974-4b3a-b891-4a4b3e365c6e
filename: s41598-025-20567-9.pdf