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Article
Influence of Cation Order on the Electric Field-Induced Phase Transition in Pb(Mg1/3Nb2/3)O3-Based Relaxor Ferroelectrics
Journal of the American Ceramic Society
  • Xiaohui Zhao, Iowa State University
  • Weiguo Qu, Iowa State University
  • Hui He, Iowa State University
  • Naratip Vittayakorn, King Mongkut's Institute of Technology
  • Xiaoli Tan, Iowa State University
Document Type
Article
Publication Date
1-1-2006
DOI
10.1111/j.1551-2916.2005.00675.x
Abstract

The effect of cation ordering on an electric field-induced relaxor to normal ferroelectric phase transition in Pb(Mg1/3Nb2/3)O3 (PMN)-based ceramics was investigated. Both A-site La doping and B-site Sc doping were found to enhance the chemical ordering in these relaxor ceramics. However, the enhanced chemical orderings showed different impacts on the dielectric and ferroelectric properties in these perovskite materials. The 5% La doping was observed to shift the dielectric maximum temperature (Tmax) to a significantly lower temperature and suppress the electric field-induced transition to a ferroelectric phase. In contrast, the 5% and 10% Sc doping showed little effect on Tmax but strengthened the ferroelectric coupling. The difference is discussed on the basis of cation size and charge imbalance. An electric field-temperature phase diagram is also proposed for the 0.90PMN–0.10Pb(Sc1/2Nb1/2)O3 based on its history dependence of the electric field-induced phase transition.

Comments

This is the peer reviewed version of the following article: Journal of the American Ceramic Society 89, 202-209 (2006), which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1111/j.1551-2916.2005.00675.x/full.

Rights
This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Copyright Owner
Zhao, et al.
Language
en
Date Available
2014-12-15
File Format
application/pdf
Citation Information
Xiaohui Zhao, Weiguo Qu, Hui He, Naratip Vittayakorn, et al.. "Influence of Cation Order on the Electric Field-Induced Phase Transition in Pb(Mg1/3Nb2/3)O3-Based Relaxor Ferroelectrics" Journal of the American Ceramic Society Vol. 89 Iss. 1 (2006) p. 202 - 209
Available at: http://works.bepress.com/xiaoli_tan/67/