Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34767
Title: Dielectric properties of columnar-grained (Ba0.75Sr0.25)(Zr0.25Ti 0.75)O3 thin films prepared by pulsed laser deposition
Authors: Tang, X
Wang, J
Chan, HLW 
Keywords: Characterization
(Ba,Sr)(Zr,Ti)O3
Dielectric materials
Laser epitaxy
Issue Date: 2005
Publisher: Elsevier
Source: Journal of crystal growth, 2005, v. 276, no. 3-4, p. 453-457 How to cite?
Journal: Journal of crystal growth
Abstract: The preferentially (1 0 0)-oriented (Ba0.75Sr0.25)(Zr0.25Ti0.75)O3 (BSZT) thin films were deposited on Pt(1 1 1)/Ti/SiO2/Si(1 0 0) substrates by a pulsed laser deposition process. The films exhibited columnar-grained characteristics with grain sizes of 30–80 nm.The temperature dependence of dielectric constants was investigated; it is shown that the cubic to rhombohedral phase transition temperature is located at the vicinity of 200 K. At 300 K and 1 MHz, the dielectric constant and loss tan δ are 321 and 0.014, respectively. The dielectric constant of BSZT film changes significantly with applied DC bias field and has a high tunability of ∼53% at 1 MHz and an applied field of 600 kV/cm.
URI: http://hdl.handle.net/10397/34767
ISSN: 0022-0248
DOI: 10.1016/j.jcrysgro.2004.11.389
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