Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/107300
Title: Residual strains and dielectric properties of Pb0.7la 0.2TiO3-based perovskites
Authors: Soon, H.P. 
Xue, J.M. 
Wang, J. 
Keywords: Ferroelectric
Phase transition
Relaxor
Strain
XRD
Issue Date: 2005
Citation: Soon, H.P.,Xue, J.M.,Wang, J. (2005). Residual strains and dielectric properties of Pb0.7la 0.2TiO3-based perovskites. IEEE International Symposium on Applications of Ferroelectrics : 320-323. ScholarBank@NUS Repository.
Abstract: A correlation between the local structural distortions and dielectric behaviors of Pb0.7La0.2TiO3 (PLT-A20) was developed on the basis of XRD residual strain analyses. It was observed that A-site iso-valent substitutions with various ionic sizes, i.e. Ba2+ and Sr2+, generate tensile and compressive lattice mismatch strains, which are balanced delicately by the long-range Coulombic forces and short-range repulsions, leading to a breakdown in dipolar long-range order. Thus, both dielectric transition from normal ferroelectric to relaxor and enhancement in diffuse phase transition (DPT) are observed by increasing the level of Ba 2+ and Sr2+ substitution in PLT-A20, respectively. © 2004 IEEE.
Source Title: IEEE International Symposium on Applications of Ferroelectrics
URI: http://scholarbank.nus.edu.sg/handle/10635/107300
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

45
checked on Oct 5, 2018

Google ScholarTM

Check


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