Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18390
Title: Nonlinear dielectric properties of (Ba,Sr)TiO3 and Ba(Zr,Ti)O3 thin films for tunable microwave device applications
Authors: Tang, XG
Wang, DY
Wang, J
Chan, HLW 
Keywords: BZT thin films
Dielectric properties
Electric field
Pulsed laser deposition
Tunability
Issue Date: 2006
Publisher: Taylor & Francis
Source: Integrated ferroelectrics, 2006, v. 77, p. 151-156 How to cite?
Journal: Integrated ferroelectrics 
Abstract: Barium strontium titanate (Ba0.50Sr0.50)TiO 3 (BST), and barium zirconate titanate Ba(Zr0.35Ti 0.65)O3 (BZT) thin films on Pt-coated silicon substrates have been prepared by pulse laser deposition. The highly (100)-oriented BST and BZT thin films with nano-sized grains of 15-25 nm have been characterized by X-ray diffraction, atomic force microscopy and impedance measurements. The dielectric constant and dissipation factor of BST and BZT thin films were 822 and 0.025, 416 and 0.015 at 1 MHz, respectively. The dielectric constant of BST and BZT thin films changes significantly with applied dc bias field and has high tunabilities and figures of merit of 63% and 42, 67% and 45, respectively under an applied field of 250 kV/cm.
Description: Seventeenth International Symposium on Integrated Ferroelectrics, ISIF-17, Shanghai, 17-20 April 2005
URI: http://hdl.handle.net/10397/18390
ISSN: 1058-4587
EISSN: 1607-8489
DOI: 10.1080/10584580500414358
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