Transactions on Electrical and Electronic Materials

  • 제6권6호
  • /
  • Pages.284-288
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  • 2005
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  • 1229-7607(pISSN)
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  • 2092-7592(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Enhanced Superconducting Properties in Melt-processed (Y0.33Sm0.33Nd0.33) Ba2Cu3Oy Oxides in Air

  • Kim, So-Jung (Department of Electrical and Electronic Engineering, Hanzhong University) ;
  • Park, Jong-Kuk (Department of Electrical Engineering, Samcheok National University)
  • 발행 : 2005.12.01
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초록

We have systematically studied the superconducting properties and flux pinning enhancement of $(Y_{0.33}Sm_{0.33}Nd_{0.33})\;Ba_2Cu_3O_y$ [(YSN)-123] composite oxides by melt growth process in air. A sample prepared by this method showed well-textured microstructure, and $(Y_{0.33}Sm_{0.33}Nd_{0.33})\;BaCuO_5$ [(YSN)211] nonsuperconducting particles were uniformly dispersed in large (YSN) 123 superconducting matrix. The sample showed a sharp superconducting transition at 91 K. The magnetization measurements of the (YSN)-123 sample exhibited the enhanced flux pinning, compared with $YBa_2Cu_3O_y$ (Y-123) sample without Sm and Nd. Critical current densities of (YSN)-123 sample was $2.5{\times}10^4 A/cm^2$ at 2 T and 77 K.

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참고문헌

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