Progress in Superconductivity and Cryogenics (한국초전도ㆍ저온공학회논문지)

The Korean Society of Superconductivity and Cryogenics (한국초전도저온학회)
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Fabrication of SmBCO coated conductors using $CeO_2$ single buffer layers

$CeO_2$ 단일 완충층을 이용한 SmBCO 초전도테이프 제조

  • 김태형 (한국전기연구원 초전도재료그룹) ;
  • 김호섭 (한국전기연구원 초전도재료그룹) ;
  • 하홍수 (한국전기연구원 초전도재료그룹) ;
  • 오상수 (한국전기연구원 초전도재료그룹) ;
  • 양주생 (한국전기연구원 초전도재료그룹) ;
  • 하동우 (한국전기연구원 초전도재료그룹) ;
  • 송규정 (한국전기연구원 초전도재료그룹) ;
  • 이남진 (한국전기연구원 초전도재료그룹) ;
  • 정예현 (한국과학기술연구원 물리학과) ;
  • 박경채 (경북대학교 금속신소재공학과)
  • Published : 2006.09.01
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Abstract

Simplification of the buffer architecture in the fabrication of coated conductors is required because the deposition of multi-layers leads to a longer production time and a higher cost of coated conductors. In this study, a single layered buffer deposition of $CeO_2$ for low cost coated conductors has been tried using thermal evaporation technique. l00nm-thick $CeO_2$ layers deposited by thermal evaporation were found to act as a diffusion layer. $0.4{\mu}m$-thick SmBCO superconducting layers were deposited by thermal co-evaporation on the $CeO_2$ buffered Ni-W substrate. Critical current of $55.4 A/cm^2$ was obtained for the SmBCO coated conductors.

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References

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