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Proceedings Paper

Preparation and characterization of Nd-doped Bi4Ti3O12 thin films by pulsed laser deposition method
Author(s): Wen Biao Wu; Zhong Yan Meng; A. Shibuya; M. Okuyama
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Paper Abstract

Perovskite Neodymium-modified Bi4Ti3O12 (BNdT) thin films were prepared on Pt/TiO2/SiO2/Si substrates by the pulsed laser deposition (PLD) technique, and their structures and ferroelectric properties were investigated. The remnant polarization was increased with Nd-modification. The remanent polarization (2Pr) and coercive field (2Ec) of BNdT thin films are 78 μC/cm2 and 619 kV/cm, respectively. The good fatigue behavior of BNdT films has been obtained. The reduction of remanent polarization of +Pr and -Pr is smaller than 25 % after 1010 switching cycles. The effect of substrate temperature and laser repetition frequency on the structure and ferroelectric properties is remarkable.

Paper Details

Date Published: 8 December 2004
PDF: 5 pages
Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); doi: 10.1117/12.607285
Show Author Affiliations
Wen Biao Wu, Shanghai Univ. (China)
Zhong Yan Meng, Shanghai Univ. (China)
A. Shibuya, Osaka Univ. (Japan)
M. Okuyama, Osaka Univ. (Japan)


Published in SPIE Proceedings Vol. 5774:
Fifth International Conference on Thin Film Physics and Applications
Junhao Chu; Zongsheng Lai; Lianwei Wang; Shaohui Xu, Editor(s)

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