Transactions on Electrical and Electronic Materials

  • 제5권5호
  • /
  • Pages.199-203
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  • 2004
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  • 1229-7607(pISSN)
  • /
  • 2092-7592(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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Formation and Intergrowth of the Superconducting Phase in the Bi2Sr2Can-1CunOx (n=2~4) System

  • Cheon, Min-Woo (Department of Electronics Engineering, Dongshin University) ;
  • Park, Yong-Pil (Department of Electronics Engineering, Dongshin University)
  • 발행 : 2004.10.01
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초록

Superconducting B $i_2$S $r_2$C $a_{n-l}$C $u_{n}$ $O_{x}$(n=2～4) thin films were prepared by single target DC-magnetron sputtering. And, that was compared with the B $i_2$S $r_2$C $a_{n-l}$C $u_{n}$ $O_{x}$(n=1～3) thin film fabricated by using the ion beam sputtering. Phase intergrowth among n=2-3, 3-4 and 4-5 phases was observed. The molar fraction of each phase in the mixed crystal of the deposited films was determined by x-ray diffraction analyses and investigated as a function of $O_2$ gas pressure during sputtering. We investigated the changes of the superconducting properties by molar fraction of each phase. Also, the thin film surface observation was carried out by atomic force microscope. The images show the average particle size decreases, and the distribution density of particles on the film surface was to increase with lower gas pressures. The fabrication conditions for selective growth of the single n=2, 3 and 4 phases in BiSrC $a_{n-l}$C $u_{n}$ $O_{x}$(n=2～4) thin film are discussed.e discussed.ussed.

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참고문헌

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