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Hierarchical Structure-Ferroelectricity Relationships of Barium Titanate Particles
 

Summary: Review
Hierarchical Structure-Ferroelectricity Relationships of
Barium Titanate Particles
Tu Lee* and Ilhan A. Aksay
Department of Chemical Engineering and Princeton Materials Institute,
Princeton University, Princeton, New Jersey 08544-5211
Received May 3, 2001
ABSTRACT: The aim of this paper is to dissect the hierarchical structures of BaTiO3 particles into primary,
secondary, tertiary, and quaternary structural levels and to thoroughly review the corresponding structure-
ferroelectricity relationships at all levels. This analytical framework is of growing importance for the fundamental
understanding of the ferroelectric properties of BaTiO3 in microelectronic devices, especially as their structural
levels are all approaching the same scale in the process of miniaturization. The identification of the most influential
structure among others and the deduction of a meaningful structure-ferroelectricity relationship depend on a
thorough understanding of the relationships.
1. Introduction
Since the discovery of BaTiO3 by Wainer and Salomon
in 1942,1 the fundamentals of its ferroelectricity have
often been related to its tertiary structure (ferroelectric
domains) by assuming both primary (ionic spacing) and
secondary (crystal lattice) structures are perfect (Table

  

Source: Aksay, Ilhan A. - Department of Chemical Engineering, Princeton University

 

Collections: Materials Science