Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20394
Title: Optical properties of Ba0.5Sr0.5TiO3 thin films grown on MgO substrates by pulsed laser deposition
Authors: Wang, DY
Mak, CL 
Wong, KH
Chan, HLW 
Choy, CL
Keywords: BST thin films
Electro-optic
Ellipsometer
Issue Date: 2004
Publisher: Elsevier Sci Ltd
Source: Ceramics international, 2004, v. 30, no. 7, p. 1745-1748 How to cite?
Journal: Ceramics International 
Abstract: Barium strontium titanate (Ba0.5Sr0.5TiO3 or BST (50/50)) thin films were grown on MgO(100) substrates using pulsed laser deposition (PLD). The surface morphology of the thin films was observed using a scanning probe microscope and the grain size was found to be around 100-150nm. The surface roughness is below 5nm for a 250nm thick film. X-ray diffraction (XRD) results revealed that the BST thin films were epitaxially grown on the MgO(100) substrates. Optical transmittance and electro-optic (E-O) properties of the BST thin films were measured using a phase modulation detection method. The BST/MgO configuration was highly transparent in the visible region. The BST film exhibited a predominantly quadratic E-O behavior and the quadratic E-O coefficient was found to be 0.42×10-17m2/V 2.
Description: 3rd Asian Meeting on Electroceramics, Singapore, 7-11 December 2003
URI: http://hdl.handle.net/10397/20394
ISSN: 0272-8842
DOI: 10.1016/j.ceramint.2003.12.136
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