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Study of the Order‐Disorder Transition in A(B′B″)O 3 Perovskite Type Ceramics
Author(s) -
Zhang Xiaowen,
Wang Qiang,
Gu Binglin
Publication year - 1991
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1991.tb06853.x
Subject(s) - order (exchange) , perovskite (structure) , permittivity , condensed matter physics , phase diagram , materials science , diagram , ceramic , thermodynamics , type (biology) , crystallography , physics , chemistry , mathematics , dielectric , quantum mechanics , phase (matter) , statistics , geology , paleontology , optoelectronics , finance , economics , composite material
Based on an order–disorder transition model and the calculation of coulombic electrostatic interaction of B‐site ions, an “ordering structure factor” F 0 is introduced. Consequently, an available criterion and diagram to predict the order–disorder transition of A(B′B″)O 3 is presented quantitatively. The theoretical results compare satisfactorily with experimental data collected from the literature for different kinds of A(B′B″)O 3 ferroelectrics and antiferroelectrics. Permittivity ɛ′ is a sensitive parameter and plays an important role in order–disorder transition. The reason for conflicting arguments from different references for the ordering of some compounds is discussed.