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https://doi.org/10.1088/0022-3727/41/20/205408
Title: | Dependence of structure and properties of Ba(Zr0.25Ti 0.75)O3 thin films on temperature and post-annealing |
Authors: | Doan, V.D.O. Lai, M.O. Lu, L. |
Issue Date: | 21-Oct-2008 |
Source: | Doan, V.D.O., Lai, M.O., Lu, L. (2008-10-21). Dependence of structure and properties of Ba(Zr0.25Ti 0.75)O3 thin films on temperature and post-annealing. Journal of Physics D: Applied Physics 41 (20) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0022-3727/41/20/205408 |
Abstract: | Ba(Zr0.25Ti0.75)O3 thin film was deposited on a LaNiO3-coated SiO2/Si substrate by pulsed-laser deposition. Crystallinity, (h 0 0) texture and surface texture were found to be improved, and the out-of-plane lattice parameter d, polarization P, dielectric constant εr(0) and tunability nr were found to increase with increasing deposition temperature or post-annealing duration. Improvement in crystallinity is believed to be the reason for the improved properties. The increase in the out-of-plane lattice parameter of the highly (h 0 0) textured thin film causes the increases in nr and P, while the changes in εr and nr are closely associated with the changes in εr(0) and P. A high tunability of 76% measured at the frequency of 1 MHz could be achieved for the film deposited and annealed at 640 °C, showing that Ba(Zr0.25Ti0.75)O3 thin film would be a potential candidate for future tunable devices. © 2008 IOP Publishing Ltd. |
Source Title: | Journal of Physics D: Applied Physics |
URI: | http://scholarbank.nus.edu.sg/handle/10635/84963 |
ISSN: | 00223727 |
DOI: | 10.1088/0022-3727/41/20/205408 |
Appears in Collections: | Staff Publications |
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