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Title: Comparative study of effects of Mo and W dopants on the ferroelectric property of Pb(Zr0.3Ti0.7) thin films
Authors: Zhang, Z. 
Wang, S.
Song, W.
Lu, L. 
Shu, C. 
Wu, P.
Issue Date: 7-Jul-2008
Source: Zhang, Z., Wang, S., Song, W., Lu, L., Shu, C., Wu, P. (2008-07-07). Comparative study of effects of Mo and W dopants on the ferroelectric property of Pb(Zr0.3Ti0.7) thin films. Journal of Physics D: Applied Physics 41 (13) : -. ScholarBank@NUS Repository.
Abstract: Pb(Zr0.3Ti0.7)O3 thin films, respectively, doped with 1 mol% W and 1 mol% Mo have been deposited on the LaNiO3 bottom electrodes using pulse laser deposition. The x-ray diffraction analyses revealed that both dopants induced (1 1 0) orientation of the perovskite structures. Compared with the undoped PZT films, the doped PZT films showed smoother and denser surfaces. The XPS measurements indicated that W possessed a valence state of +6 in the PZTW films, but Mo showed mixed valence states of +4 and +6. The hysteresis loops and fatigue results of the undoped, the W-doped (PZTW) and the Mo-doped PZT (PZTM) films were obtained. While both the two doped films revealed better fatigue behaviour than undoped PZT, the PZTW film had a slow fatigue rate in comparison with the PZTM film, which is consistent with our previous theoretical predictions. © 2008 IOP Publishing Ltd.
Source Title: Journal of Physics D: Applied Physics
ISSN: 00223727
DOI: 10.1088/0022-3727/41/13/135402
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