Ferroelectric and magnetic properties of Pb(Fe2/3W1/3)O-3-based multiferroic compounds with cation order

TitleFerroelectric and magnetic properties of Pb(Fe2/3W1/3)O-3-based multiferroic compounds with cation order
Publication TypeJournal Article
Year of Publication2007
AuthorsTan X, Wongmaneerung R, McCallum RW
Journal TitleJournal of Applied Physics
Volume102
Pages104114
Date PublishedNov
Type of ArticleArticle
ISBN Number0021-8979
Accession NumberISI:000251324900076
Keywordsceramics, DIELECTRIC-PROPERTIES
Abstract

BiFeO3 and PbTiO3 were introduced to a Sc-modified Pb(Fe2/3W1/3)O-3 compound with strong cation order to improve the multiferroic properties. It is found that the degree of cation order decreases as the amount of BiFeO3 or PbTiO3 increases. As a result, the saturation magnetization deteriorates. Solid solutions with BiFeO3 show an increase in both ferroelectric and magnetic transition temperatures. However, the ferroelectric remanent polarization is dramatically suppressed. In contrast, solid solution with PbTiO3 leads to an increase in the ferroelectric transition temperature, a decrease in the magnetic transition temperature, and a significant enhancement of remanent polarization. The composition 0.93[0.79Pb(Fe2/3W1/3)O-3-0.21Pb(Sc2/3W1/3)O-3]-0.07PbTiO(3) shows the optimized properties of T-max of 208 K, P-r of 3.6 mu C/cm(2) between 120 and 210 K, T-N of 209 K, and M-s of 0.23 mu(B)/f.u. (3.7 emu/g) at 10 K under 5 T. (C) 2007 American Institute of Physics.

DOI10.1063/1.2818367
Alternate JournalJ. Appl. Phys.