# Bulk crystal growth and characterization of non-centrosymmetric single crystal CaTa4O11

https://mdr.nims.go.jp/datasets/2292a9f0-adf8-41a8-a82a-e968d7ad4dd9

## File

- [Manuscript.pdf](https://mdr.nims.go.jp/filesets/2871d5b9-e3a7-434d-8834-c9a1aa457a5f/download) ([Detail](https://mdr.nims.go.jp/filesets/2871d5b9-e3a7-434d-8834-c9a1aa457a5f.md))
- [Manuscript.docx](https://mdr.nims.go.jp/filesets/d6d8ae0d-3f82-43c9-b83c-c12cf7041515/download) ([Detail](https://mdr.nims.go.jp/filesets/d6d8ae0d-3f82-43c9-b83c-c12cf7041515.md))

## Id

2292a9f0-adf8-41a8-a82a-e968d7ad4dd9

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-06-10T05:41:05.081517Z

## Updated at

2025-10-21T07:17:03.875834Z

## Published at

2025-10-21T07:15:02.652386Z

## Doi

https://doi.org/10.48505/nims.5001

## First published url

https://doi.org/10.1039/D4CE00949E

## Date published

2024-10-14

## Recorded date published

2024-11-18

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Bulk crystal growth and characterization of non-centrosymmetric single crystal
    CaTa4O11
  title_type: original
  lang: en

## Description

- description: Despite that the reported CaO-Ta2O5 phase diagram indicates its incongruent
    melting behavior, for the first time, we found that bulk single crystals of non-centrosymmetric
    CaTa4O11 can be grown successfully by the floating-zone method. The as-grown crystal
    rods (Ф 5-6 mm) have a black and colorless transparent appearance in Ar and O2
    growth atmospheres, respectively. Consequently, the O2 atmosphere was selected
    to optimize its bulk crystal growth. The CaTa4O11 single crystals show a good
    crystallinity with a symmetric X-ray rocking curve for 004 diffraction with an
    FWHM of 72’’. For this new hexagonal bulk single crystal, its anisotropic optical,
    dielectric, and thermal properties were characterized. The crystal has a UV cut-off
    edge at 272 nm and a visible transmittance of ~75% till 800 nm . When excited
    by both 254 nm UV and X-ray, it shows a broad-band emission with a peak wavelength
    of around 427 nm. The dielectric constants ε11 and ε33 were found to be 30 and
    52.3, respectively at 1 kHz. Meanwhile, the thermal conductivity along the c-axis
    is 5.69 Wm-1K-1, which is 1.8 times higher than that along the a-axis, which measures
    3.19 Wm-1K-1 at room temperature.
  description_type: abstract
  lang: eng

## Creator

- name: Yueshen Zhou
  role: author
  orcid: https://orcid.org/0009-0009-5327-9731
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Optical Materials
    Field/Optical Single Crystals Group
  ror: https://ror.org/026v1ze26
- name: Dongsheng Yuan
  role: author
  orcid: https://orcid.org/0000-0001-9650-2272
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Optical Materials
    Field/Optical Single Crystals Group
  ror: https://ror.org/026v1ze26
- name: Kiyoshi Shimamura
  role: author
  orcid: https://orcid.org/0000-0001-6502-8731
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Optical Materials
    Field/Optical Single Crystals Group
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Royal Society of Chemistry

## Managing organization



## Keyword

- subject: Alkaline-earth tantalates; CaTa4O11; Crystal growth; Crystal characterization
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-10-15
end_date: 2025-10-15

## Journal

- title: CRYSTENGCOMM
  issn: '14668033'
  volume: '26'
  issue: '45'

## Conference



## Related item



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## 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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## Custom property



## Fileset

- id: 2871d5b9-e3a7-434d-8834-c9a1aa457a5f
  filename: Manuscript.pdf
  content_type: application/pdf
  size: 824017
  md5: fd24e723691f3106357c8183e64958e4
- id: d6d8ae0d-3f82-43c9-b83c-c12cf7041515
  filename: Manuscript.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 5567979
  md5: 03ee0dc0af9794dffd834c5b0cbc118f

## Thumbnail

fileset_id: d6d8ae0d-3f82-43c9-b83c-c12cf7041515
filename: Manuscript.docx