Dimension and size effects in ferroelectrics

被引：102

作者：

Li, S ^{[1
]}

Eastman, JA ^{[1
]}

Vetrone, JM ^{[1
]}

Foster, CM ^{[1
]}

Newnham, RE ^{[1
]}

Cross, LE ^{[1
]}

机构：

[1] PENN STATE UNIV, MAT RES LAB, UNIVERSITY PK, PA 16802 USA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1997年 / 36卷 / 08期

关键词：

nanostructured ferroelectrics; size effect; susceptibility; anisotropy;

D O I：

10.1143/JJAP.36.5169

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The characteristic sizes of perovskite ferroelectrics have been examined by mean-field theory in a three dimensional base, leading to a detailed evaluation of the ultimate limits of physical sizes in nanostructured ferroelectrics with the stable polar phase in situations where the influence of depolarizing field can be neglected. Consequently, the dielectric susceptibility of nanostructured ferroelectrics is also derived for a three dimensional case. The size dependencies on the phase transition temperatures of perovskite ferroelectris, such as BaTiO3, PbTiO3: and Pb(Zr0.5Ti0.5)O-3, are calculated by considering crystallographic anisotropy. In addition we have numerically evaluated the dielectric coefficient of Pb(Mg, Nb)O-3 near the Curie temperature range based on its microstructure.

引用

页码：5169 / 5174

页数：6

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