Title :
Long Rang Cation Order in Pb(Mg1/3Nb2/3)O3 Complex Oxides
Author :
Tan, X. ; Zhao, X. ; Qu, W.
Author_Institution :
Iowa State Univ., Ames
Abstract :
Long range cation order in the Pb(Mg1/3Nb2/3)O3 compound was developed through only 1 at.% cation substitution with La3+, Sc3+ or W3+. However, the dielectric/ferroelectric behavior of the chemically ordered PMN is strongly dependent on the substituting species. Generally speaking, incorporating La3+ significantly suppresses, while introducing Sc3+ moderately enhances, the ferroelectricity in PMN. The situation with the substitution with W6+ is complex due to the antiferroelectric nature of Pb(Mg1/3Nb2/3)O3.
Keywords :
antiferroelectricity; dielectric losses; ferroelectricity; lead compounds; permittivity; transmission electron microscopy; PbMg0.33Nb0.67O3; TEM; antiferroelectricity; cation substitution; dielectric loss; dielectric-ferroelectric behavior; ferroelectricity; long range cation order; relative permittivity; Annealing; Ceramics; Chemicals; Dielectrics; Electrons; Ferroelectric materials; Materials science and technology; Niobium; Relaxor ferroelectrics; Space charge;
Conference_Titel :
Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on
Conference_Location :
Nara
Print_ISBN :
978-1-4244-1334-8
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2007.4393239
