Preparation and characterization of Nd-doped Bi4Ti3O12 thin films by pulsed laser deposition method

Wen Biao Wu; Zhong Yan Meng; A. Shibuya; M. Okuyama

doi:10.1117/12.607285

8 December 2004 Preparation and characterization of Nd-doped Bi₄Ti₃O₁₂ thin films by pulsed laser deposition method

Wen Biao Wu, Zhong Yan Meng, A. Shibuya, M. Okuyama

Proceedings Volume 5774, Fifth International Conference on Thin Film Physics and Applications; (2004) https://doi.org/10.1117/12.607285
Event: Fifth International Conference on Thin Film Physics and Applications, 2004, Shanghai, China

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 (2P_r) and coercive field (2E_c) 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.

Citation Download Citation

Wen Biao Wu, Zhong Yan Meng, A. Shibuya, and M. Okuyama "Preparation and characterization of Nd-doped Bi₄Ti₃O₁₂ thin films by pulsed laser deposition method", Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); https://doi.org/10.1117/12.607285

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