한국전기전자재료학회:학술대회논문집 (Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference)

한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
권호 표지

YBCO PLD 타겟에 BZO 나노분말 첨가에 따른 PLD-YBCO 박막의 자속고정 효과

The Effect of the Addition of BZO Nanopowder in the YBCO PLD Targets on the Flux Pinning Properties of BZO-YBCO Thin Film

  • Song, K.J. (Korea Electrotechnology Research Institute) ;
  • Ko, R.K. (Korea Electrotechnology Research Institute) ;
  • Lee, Y.S. (Korea Electrotechnology Research Institute) ;
  • Park, Y.M. (Korea Electrotechnology Research Institute) ;
  • Yang, J.S. (Korea Electrotechnology Research Institute) ;
  • Kim, H.S. (Korea Electrotechnology Research Institute) ;
  • Ha, H.S. (Korea Electrotechnology Research Institute) ;
  • Ha, D.W. (Korea Electrotechnology Research Institute) ;
  • Kim, S.W. (Korea Electrotechnology Research Institute) ;
  • Oh, S.S. (Korea Electrotechnology Research Institute) ;
  • Kim, D.J. (Seoul National University) ;
  • Park, C. (Seoul National University) ;
  • Yoo, S.I. (Seoul National University)
  • 발행 : 2005.11.10
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초록

[ $BaZrO_3$ ], nanopowder was added to YBCO powder to make ($BazrO_3)_x(YBCO)_{(100-x)mol.-%}$ ($BZO_x$-YBCO) ($0{\leq}x{\leq}10$) composite targets fur pulsed laser deposition of superconducting layer in order to investigate the effect of the addition of BZO nanopowder in the YBCO target on the flux pinning properties of $BZO_x$-YBCO thin films. All the $BZO_x$-YBCO thin films were grown on single crystal STO substrate under similar conditions in the PLD chamber. The effect of YBCO targets doped with BZO on the flux pinning properties of $BZO_x$-YBCO thin films has been investigated comparatively. The isothermal magnetizations M(H) of the films were measured at temperatures between 5 and 80 K in fields up to 5 T, employing a PPMS. The optimal amount of BZO nanopowders in $BZO_x$-YBCO thin films to obtain the strongest flux pinning effects at high magnetic fields is about 6 mol.-%.

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