Jpn. J. Appl. Phys. 42 (2003) pp. 2037-2040  |Next Article|  |Table of Contents|
|Full Text PDF (183K)| |Buy This Article|

Ferroelectric Characteristics Control of (Bi,La)₄Ti₃O₁₂ and SrBi₂Ta₂O₉ Films by Addition of Silicates and Germanates

Yoshihito Kawashima, Takeshi Kijima¹ and Hiroshi Ishiwara

(Received September 18, 2002; accepted for publication November 5, 2002)

Ferroelectric characteristics of (Bi,La)₄Ti₃O₁₂ (BLT) and SrBi₂Ta₂O₉ (SBT) films were changed by addition of certain silicates and germanates. The ferroelectric films were formed by spin-coating mixed chemical solution of BLT or SBT and silicate or germanate on a Pt/Ti/SiO₂/Si structure. In the BLT-based films, it was found from X-ray diffraction (XRD) analysis that the preferred orientation of crystallites was changed by changing metal elements in the silicates and germanates. From P–V (polarization vs. voltage) measurement, it is evident that the remanent polarization and coercive field were changed reflecting these different orientations. On the other hand, the crystallite orientation of the SBT-based films did not change, although its remanent polarization and coercive field were changed by additives.

URL: http://jjap.jsap.jp/link?JJAP/42/2037/
DOI: 10.1143/JJAP.42.2037

References | Citing Articles (3)

1. T. Kijima and H. Ishiwara: Jpn. J. Appl. Phys. 41 (2002) L716[JSAP].
2. B. H. Park, B. S. Kang, S. D. Bu, T. W. Noh, J. Lee and W. Jo: Nature 401 (1999) 682[CrossRef].
3. U. Chon, G. C. Ti and H. M. Jang: Appl. Phys. Lett. 78 (2001) 658[AIP Scitation].
4. A. Kakimi, S. Okamura and T. Tsukamoto: Jpn. J. Appl. Phys. 33 (1994) L1707[JSAP].
5. K. Kato, C. Zheng, J. M. Finder, S. K. Dey and Y. Torii: J. Am. Ceram. Soc. 81 (1998) 1869.
6. K. Aizawa, E. Tokumitsu, K. Okamamoto and H. Ishiwara: Appl. Phys. Lett. 76 (2000) 2609[AIP Scitation].
7. T. Noguchi, T. Hase and Y. Miyasaka: Jpn. J. Appl. Phys. 35 (1996) 4900[JSAP].
8. T. Watanabe, H. Funakubo, M. Osada, Y. Noguchi and M. Miyayama: Appl. Phys. Lett. 80 (2002) 100[AIP Scitation].
9. Y. Noguchi, I. Miwa, Y. Goshima and M. Miyayama: Jpn. J. Appl. Phys. 39 (2000) L1259[JSAP].
10. K. Kojima, T. Sakai, T. Watanabe and H. Funakubo: Appl. Phys. Lett. 80 (2002) 2746[AIP Scitation].