# Cross-sectional microstructure observation of YBa2Cu3O7-δ multifilament films fabricated on Nb stripes

https://mdr.nims.go.jp/datasets/9d5948e1-54e7-4fe2-8494-28841c5625f6

## Files

- [Final_versionofMTC.docx](https://mdr.nims.go.jp/filesets/1f901ede-2186-4219-b5a0-451526f901e6/download) ([Detail](https://mdr.nims.go.jp/filesets/1f901ede-2186-4219-b5a0-451526f901e6.md))

## Id

9d5948e1-54e7-4fe2-8494-28841c5625f6

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-26T04:23:27.752358Z

## Updated at

2025-12-26T05:15:29.878322Z

## Published at

2026-01-02T08:31:06.245046Z

## Doi

https://doi.org/10.48505/nims.6085

## First published url

https://doi.org/10.1016/j.mtcomm.2025.114552

## Date published

2025-12-22

## Recorded date published

2026-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Cross-sectional microstructure observation of YBa2Cu3O7-δ multifilament films
    fabricated on Nb stripes
  title_type: original
  lang: en

## Description

- description: A bottom-up approach was employed to achieve multifilamentation aimed
    at reducing the alternating current (AC) losses of REBa₂Cu₃O7-δ coated conductors.
    Nb stripes were fabricated on SrTiO₃ substrates, followed by the deposition of
    YBa₂Cu₃O₇-δ (YBCO) thin films via the metal-organic deposition method. The films
    were subse quently evaluated and analyzed. Surface observations using scanning
    electron microscopy revealed a linear dark contrast on the stripes, distinct from
    the YBCO matrix. Furthermore, selected area electron diffraction patterns and
    scanning transmission electron microscopy-energy dispersive X-ray spectroscopy
    analyses confirmed the presence of multiple Y–Cu–O and Cu–O particles in the YBCO
    phase on a ~4 μm-wide Nb stripe. In addition, the formation of voids and Ba5Nb4O15
    was observed in the ~4 μm Nb stripe. On a wider Nb stripe (~13 μm), only Y–Cu–O
    and Cu–O phases and cracks were observed, along with relatively large voids and
    the formation of Ba5Nb4O15. This study provides a fundamental understanding of
    multifilamented YBCO thin films and offers important insights into reducing AC
    losses.
  description_type: abstract
  lang: und

## Creator

- name: T. Wada
  role: author
- name: H. Fujimoto
  role: author
- name: Y. Kawahara
  role: author
- name: A. Matsumoto
  role: author
  orcid: https://orcid.org/0000-0002-6388-2130
- name: S. Ooi
  role: author
  orcid: https://orcid.org/0000-0003-2129-0310
- name: M. Tachiki
  role: author
  orcid: https://orcid.org/0000-0002-6033-3515
- name: R. Teranishi
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: YBa₂Cu₃O7-δ superconducting film
  schema: not_defined
- subject: Multifilamentation
  schema: not_defined
- subject: Film growth
  schema: not_defined
- subject: Microstructure
  schema: not_defined
- subject: Cross-sectional TEM
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Materials Today Communications
  issn: '23524928'
  volume: '50'
  article_number: '114552'

## Conference



## Related item



## Funding

- identifier: 22H02019
  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: 1f901ede-2186-4219-b5a0-451526f901e6
  filename: Final_versionofMTC.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 11293362
  md5: 74a4b561a6611385e2ac6698d68133b0

## Thumbnail

fileset_id: 1f901ede-2186-4219-b5a0-451526f901e6
filename: Final_versionofMTC.docx