Two level undercut-profile substrate for filamentary YBa2Cu3O7 coated conductors: Fast Track Communication

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Abstract

A novel substrate design is presented for scalable industrial production of filamentary coated conductors (CCs). The new substrate, called ‘two level undercut-profile substrate (2LUPS)’, has two levels of plateaus connected by walls with an undercut profile. The undercuts are made to produce a shading effect during subsequent deposition of layers, thereby creating gaps in the superconducting layer deposited on the curved walls between the two levels. It is demonstrated that such 2LUPS-based CCs can be produced in a large-scale production system using standard deposition processes, with no additional post-processing. Inspection of the conductor cross-section reveals that the deposited superconducting layer is physically separated at the 2LUPS undercuts. Filament decoupling is also seen in maps of the remanent magnetic field and confirmed by transport measurements.
Original languageEnglish
Article number072001
JournalSuperconductor Science and Technology
Volume28
Issue number7
Number of pages5
ISSN0953-2048
DOIs
Publication statusPublished - 2015

Keywords

  • Coated conductors
  • Metal substrate
  • Filamentary structures
  • Critical current
  • Remanent magnetic field

Cite this

@article{593b57d17fab4084a9c15d0a1cf10496,
title = "Two level undercut-profile substrate for filamentary YBa2Cu3O7 coated conductors: Fast Track Communication",
abstract = "A novel substrate design is presented for scalable industrial production of filamentary coated conductors (CCs). The new substrate, called ‘two level undercut-profile substrate (2LUPS)’, has two levels of plateaus connected by walls with an undercut profile. The undercuts are made to produce a shading effect during subsequent deposition of layers, thereby creating gaps in the superconducting layer deposited on the curved walls between the two levels. It is demonstrated that such 2LUPS-based CCs can be produced in a large-scale production system using standard deposition processes, with no additional post-processing. Inspection of the conductor cross-section reveals that the deposited superconducting layer is physically separated at the 2LUPS undercuts. Filament decoupling is also seen in maps of the remanent magnetic field and confirmed by transport measurements.",
keywords = "Coated conductors, Metal substrate, Filamentary structures, Critical current, Remanent magnetic field",
author = "Wulff, {Anders Christian} and M. Solovyov and Fedor G{\"o}m{\"o}ry and Abrahamsen, {Asger Bech} and Mishin, {Oleg V.} and A. Usoskin and A. Rutt and J.H. Lundeman and Thyd{\'e}n, {Karl Tor Sune} and Hansen, {J{\o}rn Otto Bindslev} and Jean-Claude Grivel",
year = "2015",
doi = "10.1088/0953-2048/28/7/072001",
language = "English",
volume = "28",
journal = "Superconductor Science & Technology",
issn = "0953-2048",
publisher = "IOP Publishing",
number = "7",

}

Two level undercut-profile substrate for filamentary YBa2Cu3O7 coated conductors : Fast Track Communication. / Wulff, Anders Christian; Solovyov, M.; Gömöry, Fedor; Abrahamsen, Asger Bech; Mishin, Oleg V.; Usoskin, A.; Rutt, A.; Lundeman, J.H.; Thydén, Karl Tor Sune; Hansen, Jørn Otto Bindslev; Grivel, Jean-Claude.

In: Superconductor Science and Technology, Vol. 28, No. 7, 072001, 2015.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Two level undercut-profile substrate for filamentary YBa2Cu3O7 coated conductors

T2 - Fast Track Communication

AU - Wulff, Anders Christian

AU - Solovyov, M.

AU - Gömöry, Fedor

AU - Abrahamsen, Asger Bech

AU - Mishin, Oleg V.

AU - Usoskin, A.

AU - Rutt, A.

AU - Lundeman, J.H.

AU - Thydén, Karl Tor Sune

AU - Hansen, Jørn Otto Bindslev

AU - Grivel, Jean-Claude

PY - 2015

Y1 - 2015

N2 - A novel substrate design is presented for scalable industrial production of filamentary coated conductors (CCs). The new substrate, called ‘two level undercut-profile substrate (2LUPS)’, has two levels of plateaus connected by walls with an undercut profile. The undercuts are made to produce a shading effect during subsequent deposition of layers, thereby creating gaps in the superconducting layer deposited on the curved walls between the two levels. It is demonstrated that such 2LUPS-based CCs can be produced in a large-scale production system using standard deposition processes, with no additional post-processing. Inspection of the conductor cross-section reveals that the deposited superconducting layer is physically separated at the 2LUPS undercuts. Filament decoupling is also seen in maps of the remanent magnetic field and confirmed by transport measurements.

AB - A novel substrate design is presented for scalable industrial production of filamentary coated conductors (CCs). The new substrate, called ‘two level undercut-profile substrate (2LUPS)’, has two levels of plateaus connected by walls with an undercut profile. The undercuts are made to produce a shading effect during subsequent deposition of layers, thereby creating gaps in the superconducting layer deposited on the curved walls between the two levels. It is demonstrated that such 2LUPS-based CCs can be produced in a large-scale production system using standard deposition processes, with no additional post-processing. Inspection of the conductor cross-section reveals that the deposited superconducting layer is physically separated at the 2LUPS undercuts. Filament decoupling is also seen in maps of the remanent magnetic field and confirmed by transport measurements.

KW - Coated conductors

KW - Metal substrate

KW - Filamentary structures

KW - Critical current

KW - Remanent magnetic field

U2 - 10.1088/0953-2048/28/7/072001

DO - 10.1088/0953-2048/28/7/072001

M3 - Journal article

VL - 28

JO - Superconductor Science & Technology

JF - Superconductor Science & Technology

SN - 0953-2048

IS - 7

M1 - 072001

ER -