# Self-Assembly of Symmetric GaAs Quantum Dots on (111)A Substrates: Suppression of Fine-Structure Splitting

https://mdr.nims.go.jp/datasets/e477d70f-ee66-4d84-91fa-7aafe1fee22e

## File

- [【#4293】Mano_2010_Appl._Phys._Express_3_065203.pdf](https://mdr.nims.go.jp/filesets/01d5d37a-662d-4828-845c-b3ec7291ca03/download) ([Detail](https://mdr.nims.go.jp/filesets/01d5d37a-662d-4828-845c-b3ec7291ca03.md))

## Id

e477d70f-ee66-4d84-91fa-7aafe1fee22e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-05T02:23:40.282271Z

## Updated at

2025-12-08T07:30:04.413453Z

## Published at

2025-12-08T07:24:14.283490Z

## Doi



## First published url

https://doi.org/10.1143/apex.3.065203

## Date published

2010-05-28

## Recorded date published

2010-6

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Self-Assembly of Symmetric GaAs Quantum Dots on (111)A Substrates: Suppression
    of Fine-Structure Splitting'
  title_type: original
  lang: en

## Description

- description: Great suppression of fine-structure splitting (FSS) is demonstrated
    in self-assembled GaAs quantum dots (QDs) grown on AlGaAs(111)A surface.  Due
    to the three-fold rotational symmetry of the growth plane, highly symmetric excitons
    with significantly reduced FSS are achieved. Scanning tunneling microscopy and
    cross-sectional transmission microscopy demonstrate a laterally symmetric dot
    shape with abrupt interface. Polarized photoluminescence spectra confirm excitonic
    transition with FSS smaller than ~20μeV, a substantial reduction from that of
    QDs grown on (100).
  description_type: abstract
  lang: en

## Creator

- name: Takaaki Mano
  role: author
  orcid: https://orcid.org/0000-0002-6955-260X
- name: Marco Abbarchi
  role: author
- name: Takashi Kuroda
  role: author
  orcid: https://orcid.org/0000-0001-6445-7673
- name: Brian McSkimming
  role: author
- name: Akihiro Ohtake
  role: author
  orcid: https://orcid.org/0000-0002-3519-4613
- name: Kazutaka Mitsuishi
  role: author
  orcid: https://orcid.org/0000-0002-9361-4057
- name: Kazuaki Sakoda
  role: author
  orcid: https://orcid.org/0000-0002-5530-3020

## Contact agent



## Publisher

organization: IOP Publishing

## Managing organization



## Keyword

- subject: GaAs
  schema: not_defined
- subject: Quantum Dot
  schema: not_defined
- subject: Droplet Epitaxy
  schema: not_defined
- subject: Entanglement
  schema: not_defined
- subject: " (111)A"
  schema: not_defined
- subject: Molecular Beam Epitaxy
  schema: not_defined
- subject: Fine Structure Splitting
  schema: not_defined

## Rights

- description: https://openpolicyfinder.jisc.ac.uk/id/publication/16994 参照
  identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Applied Physics Express
  issn: '18820786'
  volume: '3'
  issue: '6'
  start_page: 65203

## Conference



## Related item



## Funding

- identifier: '22710107'
  funder_name: 日本学術振興会
  description: "GaAs(111)面上高対称性量子ドットの自己形成に関する研究\r\n若手研究(B)"

## 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



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## Fileset

- id: 01d5d37a-662d-4828-845c-b3ec7291ca03
  filename: "【#4293】Mano_2010_Appl._Phys._Express_3_065203.pdf"
  content_type: application/pdf
  size: 1855056
  md5: 1066f30e2a3b88a7614da4545011f679

## Thumbnail

fileset_id: 01d5d37a-662d-4828-845c-b3ec7291ca03
filename: "【#4293】Mano_2010_Appl._Phys._Express_3_065203.pdf"