Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Ferroelectric Properties of Ti-Doped and W-Doped SBT Ceramics

Ti와 W이 첨가된 SBT 세라믹스의 강유전 특성

  • 천채일 (호서대학교 신소재공학과) ;
  • 김정석 (호서대학교 신소재공학과)
  • Published : 2004.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

Undoped SrB $i_2$T $a_2$O$_{9}$, donor-doped Sr$_{0.99}$B $i_2$(Ta$_{0.99}$W$_{0.01}$)$_2$O$_{9}$ and acceptor-doped SrB $i_2$(Ta$_{0.99}$Ti$_{0.01}$)$_2$O$_{8.99$ ceramics were prepared and their microstructure, ferroelectric P-E hysteresis and Curie temperature were investigated. Grain size did not influence P-E hysteresis curve in undoped SrB $i_2$T $a_2$O$_{9}$ ceramics. Donor-Doped Sr$_{0.99}$B $i_2$(Ta$_{0.99}$W$_{0.01}$)$_2$O$_{9}$ ceramics showed more saturated P-E hysteresis curve with larger remanent polarization (P$_{r}$) than undoped SrB $i_2$T $a_2$O$_{9}$ ceramics while acceptor-doped SrB $i_2$(Ta$_{0.99}$Ti$_{0.01}$)$_2$O$_{8.99}$ ceramics led to a pinched P-E hysteresis loop. Larger polarization in donor-doped Sr$_{0.99}$B $i_2$(Ta$_{0.99}$W$_{0.01}$)$_2$O$_{9}$ ceramics resulted from easier domain wall motion by Sr-vacancies.

순수한 SrB $i_2$T $a_2$$O_{9}$ 세라믹스와 도너와 억셉터가 치환된 S $r_{0.99}$B $i_2$(T $a_{0.99}$ $W_{0.01}$)$_2$$O_{9}$ 와 SrB $i_2$(T $a_{0.99}$ $Ti_{0.01}$)$_2$ $O_{8.99}$ 세라믹스를 제조하고 미세구조, 강유전 P-E 이력특성, 상전이 온도를 조사하였다. 입자크기는 SrB $i_2$T $a_2$$O_{9}$ 세라믹스의 강유전 이력곡선에는 영향을 주지 않았다. 도너를 치환한 S $r_{0.99}$B $i_2$(T $a_{0.99}$ $W_{0.01}$)$_2$$O_{9}$ 세라믹스는 순수한 SrB $i_2$T $a_2$$O_{9}$ 세라믹스보다 잔류 분극이 크고 더욱 포화된 강유전 P-E 이력곡선을 보였으며, 억셉터가 치환된 SrB $i_2$(T $a_{0.99}$ $Ti_{0.01}$)$_2$ $O_{8.99}$ 세라믹스는 잔류분극이 크게 감소하여 가운데가 잘록한 모양을 보였다. 도너가 치환된 S $r_{0.99}$B $i_2$(T $a_{0.99}$ $W_{0.01}$)$_2$$O_{9}$ 세라믹스의 강유전 분극이 순수한 SrB $i_2$T $a_2$$O_{9}$ 세라믹스보다 더 큰 것은 Sr 공공의 생성에 의하여 분역벽 이동이 용이해졌기 때문이다.동이 용이해졌기 때문이다.동이 용이해졌기 때문이다.동이 용이해졌기 때문이다.

Keywords

References

  1. Jpn. J. Appl. Phys. v.35 New Low Temperature Processing of Sol-Gel $SrBi_2$$Ta_2$$O_9$ Thin Films Y, Ito;M. Ushikubo;S. Yokoyama;H. Matsunaga;T. Atsuki;T. Yonezawa;K. Ogi https://doi.org/10.1143/JJAP.35.4925
  2. Soviet Physics-Solid State v.3 Ferroelectric of the Oxygen-Octahedral Type with Layered Structure G. A. Smolenskii;V. A. Isupov;A. I. Agranovskaya
  3. Jpn. J. Appl. Phys. v.34 Preparation of Bi-Based Ferroelectric Thin Films by Sol-Gel Method T. Atsuki;N. Soyama;T. Yonezawa;K. Ogi https://doi.org/10.1143/JJAP.34.5096
  4. Jpn. J. Appl. Phys. v.34 Preparation of Ferroelectric Thin Films of Bismuth Layer Structured Compositions H. Watanabe;T. Mihara;H. Yoshimori;A. P. Araujo https://doi.org/10.1143/JJAP.34.5240
  5. Integrated Ferroelectrics v.21 no.1-4 Crystal Structure, Microstructure, and Electrical Properties in Nonstoichiometric SBT Thin Films C. I. Cheon;J. S. Kim https://doi.org/10.1080/10584589808202066
  6. J. Mater. Res. v.12 no.8 Structure Development Studies of $SrBi_2$($Ta_{1-x}$$Nb_x$)$_2$$O_9$ Thin Films T. C. Chen;T. Li;X. Zhang;S. B. Desu https://doi.org/10.1557/JMR.1997.0290
  7. Appl. Phys. Lett. v.74 no.13 Crystal Structures and Ferroelectric Propertoes of $SrBi_2$$Ta_2$$O_9$ and $Sr_{0.8}$$Bi_{2.2}$$Ta_2$$O_9$ Y. Shimakawa;Y. Kudo;Y. Nakagawa;T. Kamiyama;H. Asano https://doi.org/10.1063/1.123708
  8. Ferroelectrics v.271 Ferroelectric Properties of Nonstoichiometric $SrBi_2$$Ta_2$$O_9$ Ceramics C, I. Cheon;B. Y. Lee;J. S. Kim https://doi.org/10.1080/00150190211541
  9. J. Euro. Ceram. Soc. v.21 Crystal Structures and Phase Transitions of $Sr_{1{\pm}x}$$Bi_{2{\pm}y}$$Ta_2$$O_9$ Ceramics J. S. Kim;C. I. Cheon;H. S. Shin;C. H. Lee https://doi.org/10.1016/S0955-2219(01)00004-8
  10. Piezoelectric Ceramics B. Jaffe;W. R. Cook, Jr.;H. Jaffe
  11. Mater. Sci. Eng. B v.86 Impedance Study of $SrBi_2$$Ta_2$$O_9$ and $SrBi_2$($Ta_{0.9}V_{0.1}$)$_2$$O_9$ Ferroelectrics Y. Wu;M. J. Forbess;S. Seraji;S. J. Limmer;T. P. Chou;G. Cao https://doi.org/10.1016/S0921-5107(01)00657-2
  12. J. Mater. Sci. Lett. v.21 Influence of Tungsten Doping on Dielectric Properties of Strontium Bismuth Niobate Ferroelectric Ceramics Y. Wu;S. J. Limmer;T. P. Chou;C. Nguyen;G. Cao https://doi.org/10.1023/A:1016077724427
  13. Ferroelectrics v.268 Ac Conducivity and Direct Relaxation of Ion Doped Ferroelectric $SrBi_2$$Nb_2$$O_9$ Ceramics J. S. Kim;T. K. Song;M. H. Kim;S. S. Kim https://doi.org/10.1080/713715966