Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22837
Title: Dielectric properties of (001)-oriented Ba(Zr0.25Ti 0.75)O3 thin films prepared by pulsed laser deposition
Authors: Yun, P
Wang, DY
Ying, Z
Zhou, XY
Tian, HY
Wang, Y 
Chan, HLW 
Keywords: BZT thin film
PLD
Tunability
Issue Date: 2007
Publisher: Taylor & Francis Inc.
Source: Ferroelectrics, 2007, v. 357, no. 1 PART 3, p. 121-127 How to cite?
Journal: Ferroelectrics 
Abstract: Ba(Zr0.25Ti0.75)O3 (BZT) thin film was deposited on LaAlO3 (001) single crystal substrate using pulsed laser deposition. The X-ray diffraction examination reveals that the film is highly (001)-oriented with a pure perovskite phase. Fine grains with size of 20-30 nm in diameter were observed in atomic force microscope image. Dielectric properties of the Ba(Zr0.25Ti0.75)O3 thin film was characterized in a broad frequency range (1 kHz-10 GHz). Curie temperature of the film was found to be ∼90C, which is nearly 100C higher than that of the Ba(Zr0.25Ti0.75)O3 bulk ceramics. The relative permittivity of the film exhibits strong dependence of the dc bias field over the whole frequency range. Microwave measurements, performed between 50 MHz-1 GHz, suggest our Ba(Zr0.25Ti0.75)O3 thin film is highly tunable (tunability up to 26.1% at 1 GHz under a dc electric field of 13.3 MV/m).
Description: 5th Asian Meeting on Ferroelectricity, AMF-5, Noda, 3-7 September 2006
URI: http://hdl.handle.net/10397/22837
ISSN: 0015-0193
EISSN: 1563-5112
DOI: 10.1080/00150190701542315
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