Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/416
Title: High tunability in compositionally graded epitaxial barium strontium titanate thin films by pulsed-laser deposition
Authors: Lu, SG
Zhu, XH
Mak, CL 
Wong, KH
Chan, HLW 
Choy, CL 
Issue Date: 28-Apr-2003
Source: Applied physics letters, 28 Apr. 2003, v. 82, no. 17, p.2877-2879
Abstract: Compositionally graded barium strontium titanate [(Ba[sub x]Sr[sub 1-x])TiO₃—BST, x=0.75, 0.8, 0.9, and 1.0] thin films are fabricated by pulsed-laser deposition on a LaAlO₃ substrate with (La[sub 0.7]Sr[sub 0.3])MnO₃ as the bottom electrode. A high dielectric permittivity and temperature characteristic without Curie-Weiss law are obtained. A tunability of over 70% is obtained at frequency of 1 MHz, which is higher than that of single BST layer with the same compositions. All the results indicate that the graded thin films have better electrical properties than a single-layer film.
Keywords: Barium compounds
Strontium compounds
Epitaxial layers
Relaxor ferroelectrics
Ferroelectric thin films
Permittivity
Pulsed laser deposition
Publisher: American Institute of Physics
Journal: Applied physics letters 
ISSN: 0003-6951
EISSN: 1077-3118
Rights: © 2003 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 S.G. Lu et al. Appl. Phys. Lett. 82, 2877 (2003) and may be found at http://link.aip.org/link/?apl/82/2877
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
barium_strontium_03.pdf62.77 kBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record
PIRA download icon_1.1View/Download Full Text

SCOPUSTM   
Citations

127
Last Week
0
Last month
0
Citations as of Feb 16, 2020

WEB OF SCIENCETM
Citations

127
Last Week
0
Last month
0
Citations as of Sep 22, 2020

Page view(s)

794
Last Week
0
Last month
Citations as of Sep 23, 2020

Download(s)

990
Citations as of Sep 23, 2020

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.