# Microstructure and Superconducting Properties of Yttrium Barium Copper Oxide Thin Film With Patterned Substrates for Ultra-Fine Multi-Filaments

https://mdr.nims.go.jp/datasets/afb74edf-f29e-4a39-820d-cda012208d58

## Files

- [AMatsumoto_final.pdf](https://mdr.nims.go.jp/filesets/b3b6b8b7-f0ac-4df0-bdee-523f40ecaf53/download) ([Detail](https://mdr.nims.go.jp/filesets/b3b6b8b7-f0ac-4df0-bdee-523f40ecaf53.md))

## Id

afb74edf-f29e-4a39-820d-cda012208d58

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-06T06:45:44.349883Z

## Updated at

2026-02-07T23:30:23.019311Z

## Published at

2026-02-07T08:34:52.355647Z

## Doi

https://doi.org/10.48505/nims.6174

## First published url

https://doi.org/10.1109/tasc.2026.3655686

## Date published

2026-01-19

## Recorded date published



## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Microstructure and Superconducting Properties of Yttrium Barium Copper Oxide
    Thin Film With Patterned Substrates for Ultra-Fine Multi-Filaments
  title_type: original
  lang: en

## Description

- description: Yttrium barium copper oxide (YBCO) superconductors are promising candidates
    for superconducting magnets operating at low temperatures and high magnetic fields,
    as well as for advanced electric power devices. Commercially available YBCO wires
    are manufactured in tape form, by depositing a thin YBCO layer atop multiple buffer
    layers on a metal substrate. This coated conductor structure closely resembles
    a single crystal, with well-aligned crystallographic axes, thereby exhibiting
    high critical current densities. However, challenges remain in reducing screening
    currents and AC losses for practical applications. In this study, we present a
    multifilamentary YBCO thin film design with patterned elevated stripes, fabricated
    using photolithography on substrates. Various stripe materials, including SiO2,
    and Al2O, were evaluated by depositing YBCO on the STO/stripe structures. Magnetooptical
    imaging demonstrated that non-superconducting stripes separate the superconducting
    regions, irrespective of the stripe material used. Transmission electron microscopy
    (TEM/STEM)-EDX analysis revealed that YBCO on STO/SiO₂ stripes formed crystals
    with varied orientations, whereas STO/Al₂O₃ stripes resulted in the formation
    of impurity phases. These findings indicate that substrate patterning with stripe
    structures is a viable approach for realizing multifilamentary coated conductors,
    potentially reducing AC losses and enhancing future superconductor applications.
  description_type: abstract
  lang: und

## Creator

- name: Akiyoshi Matsumoto
  role: author
  orcid: https://orcid.org/0000-0002-6388-2130
- name: Shuuichi Ooi
  role: author
  orcid: https://orcid.org/0000-0003-2129-0310
- name: Satoshi Hata
  role: author
  orcid: https://orcid.org/0000-0001-6030-8363
- name: Taiki Wada
  role: author
  orcid: https://orcid.org/0009-0005-1883-4307
- name: Ryo Teranishi
  role: author
  orcid: https://orcid.org/0000-0001-5497-735X
- name: Yuji Tsuchiya
  role: author
  orcid: https://orcid.org/0000-0003-0480-851X

## Contact agent



## Publisher

organization: Institute of Electrical and Electronics Engineers (IEEE)

## Managing organization



## Keyword

- subject: Coated conductors
  schema: not_defined
- subject: Multifilamentary superconductors
  schema: not_defined
- subject: Photolithography
  schema: not_defined
- subject: Photolithography, YBa2Cu3Ox
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: IEEE Transactions on Applied Superconductivity
  issn: '10518223'
  volume: '36'
  issue: '5'
  start_page: 1
  end_page: 4

## Conference



## Related item



## Funding

- funder_name: Advanced Research Infrastructure for Materials and Nanotechnology

## Instrument



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## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: b3b6b8b7-f0ac-4df0-bdee-523f40ecaf53
  filename: AMatsumoto_final.pdf
  content_type: application/pdf
  size: 5817465
  md5: 66548fce7edbfc67fd4bd8a393d18c7e

## Thumbnail

fileset_id: b3b6b8b7-f0ac-4df0-bdee-523f40ecaf53
filename: AMatsumoto_final.pdf