한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제33권7호
  • /
  • Pages.802-808
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  • 1996
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  • 1229-7801(pISSN)
  • /
  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
권호 표지

D.C Magnetron Reactive Sputtering 법으로 증착한 $PbTiO_3$ 박막의 열처리에 따른 c-축 배향성의 변화

Effect of Annealing on c-axis Orientation of $PbTiO_3$ Thin Films by D.C magnetron Reactive Sputtering

  • 이승현 (한국과학기술원 재료공학과) ;
  • 권순용 (한국과학기술원 재료공학과) ;
  • 최한메 (한국과학기술원 재료공학과) ;
  • 최시경 (한국과학기술원 재료공학과)
  • 발행 : 1996.07.01
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초록

PbTiO3 thin films were fabricated onto MgO(100) single crystal substrate by reactive D. C magnetron sput-tering of Pb and Ti metal in an oxygen and argon gas mixture. The annealing of the thin films resulted in the decrease of both the c-axis orientation ratio and the lattice parameter. It is well known that the c-axis lattice parameter of thin film is dependent on the Pb/(Pb+Ti)ratio and the residual stress in the film The PbTiO3 thin films with a Pb/(Pb+T) ratio ranging from 0.45 to 0.57 were fabricated and annealed. The structure of the film the c-axis orientation ratio and the lattice parameter were not dependent on the Pb/(Pb+Ti) ratio before and after annealing. These experimental results proved that the decrease of the c-axis lattice parameter under the annealing conditions was due to the relaxation of the intrinsic stress in the film. This relaxation of the intrinsic stress caused the decrease of the c-axis orientation ratio and this phenomenon can be explained by c-axis growth lattice model.

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참고문헌

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