Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/501
Title: Structural and electro-optic properties of Ba[sub 0.7]Sr[sub 0.3]TiO₃ thin films grown on various substrates using pulsed laser deposition
Authors: Wang, D
Wang, J
Chan, HLW 
Choy, CL
Keywords: Barium compounds
Strontium compounds
Ferroelectric thin films
Epitaxial layers
Pulsed laser deposition
Crystal structure
Permittivity
Electro-optical effects
Substrates
Issue Date: 23-Feb-2007
Publisher: American Institute of Physics
Source: Journal of applied physics, 23 Feb. 2007, v. 101, 043515, p. 1-6 How to cite?
Journal: Journal of applied physics 
Abstract: Epitaxial Ba[sub 0.7]Sr[sub 0.3]TiO₃ (BST) thin films were deposited on various single crystal substrates, including LaAlO₃(LAO) (001), (LaAlO₃)[sub 0.3](Sr₂AlTaO[sub 6])[sub 0.35] (LSAT) (001), and SrTiO₃ (STO) (001), using pulsed laser deposition in order to study their structural and electro-optic properties. All the films exhibit a good crystalline quality and a pure perovskite phase with a distorted lattice structure. The in-plane temperature dependence of relative permittivity of the films was measured on interdigital electrodes. The films grown on LAO and LSAT exhibited an obvious room-temperature ferroelectric state, while the film grown on STO showed a broad phase transition peak near room temperature. Correspondingly, large linear electro-optic effects were observed in the BST films grown on LAO and LSAT in a transverse geometry at a wavelength of 632.8 nm using a modified Sénarmont method. The linear electro-optic coefficient r[sub c]of the BST films grown on LAO and LSAT was found to be 82.7 x 10ˉ¹² and 125.0 x 10ˉ¹² m/V, respectively. Nevertheless, a predominantly quadratic and slightly asymmetric electro-optic behavior is observed for the film grown on STO with the quadratic electro-optic coefficient R[sub c] of 12.9 x 10[sup -18] m²/V².
URI: http://hdl.handle.net/10397/501
ISSN: 0021-8979
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 D.Y. Wang et al. J. Appl. Phys. 101, 043515 (2007) and may be found at http://link.aip.org/link/?jap/101/043515
Appears in Collections:Journal/Magazine Article

Files in This Item:
File Description SizeFormat 
electro-optic_07.pdf481.64 kBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

40
Last Week
0
Last month
1
Citations as of Apr 10, 2016

WEB OF SCIENCETM
Citations

35
Last Week
0
Last month
0
Citations as of May 2, 2016

Page view(s)

508
Last Week
0
Last month
Checked on May 1, 2016

Download(s)

569
Checked on May 1, 2016

Google ScholarTM

Check



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