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http://hdl.handle.net/10397/506
Title: | Fine-grained BaZr[sub 0.2]Ti[sub 0.8]O₃ thin films for tunable device applications | Authors: | Ying, Z Yun, P Wang, D Zhou, X Song, ZT Feng, SL Wang, Y Chan, HLW |
Issue Date: | 17-Apr-2007 | Source: | Journal of applied physics, 17 Apr. 2007, v. 101, 086101, p. 1-3 | Abstract: | A study of the structure and in-plane dielectric properties of BaZr[sub 0.2]Ti[sub 0.8]O₃ thin film epitaxially grown on (LaAlO₃)[sub 0.3](Sr₂AlTaO[sub 6])[sub 0.35] (001) single-crystal substrates through pulsed-laser deposition has been carried out. X-ray diffraction measurements revealed a good crystallinity and tensile in-plane stress in the film. Fine grains with an average size of ~20 nm were observed using atomic force microscopy. Curie temperature of the film was found to be ~120 °C, which is 100 °C higher than that of the ceramic. Butterfly-shaped C-V curve confirmed the in-plane ferroelectric state in the film. A large dielectric tunability of ~50% was found in the film. | Keywords: | Barium compounds Zirconium Ferroelectric thin films X-ray diffraction Internal stresses Atomic force microscopy Ferroelectric Curie temperature |
Publisher: | American Institute of Physics | Journal: | Journal of applied physics | ISSN: | 0021-8979 | EISSN: | 1089-7550 | Rights: | © 2007 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Z. Ying et al. J. Appl. Phys. 101, 086101 (2007) and may be found at http://link.aip.org/link/?jap/101/086101 |
Appears in Collections: | Journal/Magazine Article |
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