# Homogeneous spin-dephasing time of NV− centre in millimetre-scale 12C-enriched high-pressure high-temperature diamond crystals

https://mdr.nims.go.jp/datasets/e261ff78-1741-479e-a845-99262644e3e8

## File

- [CShineiComMater6-66(2025)-2.pdf](https://mdr.nims.go.jp/filesets/969fad6b-11b9-4862-9c42-400a6ef7a0f6/download) ([Detail](https://mdr.nims.go.jp/filesets/969fad6b-11b9-4862-9c42-400a6ef7a0f6.md))

## Id

e261ff78-1741-479e-a845-99262644e3e8

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-24T06:04:27.339320Z

## Updated at

2025-12-19T07:30:47.467659Z

## Published at

2025-12-19T05:11:34.835228Z

## Doi



## First published url

https://doi.org/10.1038/s43246-025-00782-7

## Date published

2025-04-08

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Homogeneous spin-dephasing time of NV− centre in millimetre-scale 12C-enriched
    high-pressure high-temperature diamond crystals
  title_type: original
  lang: en

## Description

- description: ダイヤモンドの結晶に含まれる負に帯電した窒素空孔（NV）中心は、高感度な量子センサーとして期待されています。このセンサーを利用するためには、位相時間（T2が10マイクロ秒以上）が長いことが重要であり、弱い磁場（フェムトテスラ）の検出には、T2が均一なダイヤモンドが必要です。今回の研究では、NV中心のT2が非常に均一になりました。12炭素が濃縮され、高圧・高温で育てられたダイヤモンドでは、窒素の濃度が1.3
    ± 0.4 ppmの条件で、T2の中央値は4.5マイクロ秒となっています。このデータは、厚さ0.4 mmの{111}成長セクター内で、1.1 × 1.1 mm²の領域においてT2*のばらつきがわずか10%しかありません。ひずみの変化を抑えることで、NV量子センサーを使った高感度な磁気測定ができるようになります。
  description_type: abstract
  lang: und

## Creator

- name: Chikara Shinei
  role: author
  orcid: https://orcid.org/0000-0003-4926-8641
  organization: National Institute for Materials Science
- name: Yuta Masuyama
  role: author
- name: Hiroshi Abe
  role: author
- name: Masashi Miyakawa
  role: author
  orcid: https://orcid.org/0000-0002-0838-8156
  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: Takeshi Ohshima
  role: author
- name: Tokuyuki Teraji
  role: author
  orcid: https://orcid.org/0000-0002-7731-0547
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: NV centre
  schema: not_defined
- subject: millimetre-scale diamond
  schema: not_defined
- subject: HPHT growth
  schema: not_defined
- subject: residual strain gradient
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Communications Materials
  issn: '26624443'
  volume: '6'
  issue: '1'
  article_number: '66'

## Conference



## Related item



## Funding

- identifier: JPMXS0118068379 and JPMXS0118067395
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: JPMJCR1773
  funder_name: JST CREST
- identifier: JPMI00316
  funder_name: MIC R&D for construction of a global quantum cryptography network
- identifier: 20H02187, 20H05661, 19H02617
  funder_name: JSPS KAKENHI
- identifier: JPMJMS2062
  funder_name: 'JST Moonshot R&D '

## 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: 969fad6b-11b9-4862-9c42-400a6ef7a0f6
  filename: CShineiComMater6-66(2025)-2.pdf
  content_type: application/pdf
  size: 1202594
  md5: 9173617817f019b442183a73970dff0e

## Thumbnail

fileset_id: 969fad6b-11b9-4862-9c42-400a6ef7a0f6
filename: CShineiComMater6-66(2025)-2.pdf