Microstructures Related to Ferroelectric Properties in (Bi0.5K0.5)TiO3-BiFeO3

被引：18

作者：

Ozaki, Tomoatsu ^{[1
]}

Matsuo, Hiroki ^{[2
]}

Noguchi, Yuji ^{[2
]}

Miyayama, Masaru ^{[2
]}

Mori, Shigeo ^{[1
]}

机构：

[1] Osaka Prefecture Univ, Dept Mat Sci, Sakai, Osaka 5998531, Japan

[2] Univ Tokyo, RCAST, Meguro Ku, Tokyo 1538904, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 09期

关键词：

DOMAIN-STRUCTURES; TECHNOLOGY; CERAMICS; CRYSTAL; BIFEO3;

D O I：

10.1143/JJAP.49.09MC05

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Crystal structures and microstructures associated with ferroelectric properties in a lead-free piezoelectric compound, x(Bi0.5K0.5) TiO3(1 - x) BiFeO3, have been investigated mainly by transmission electron microscopy (TEM). Complicated ferroelectric domain structures with a width of approximately -200 nm were found in the polar rhombohedral structure of the x = 0.30 compound. On the other hand, a tweed-like contrast, which stems from local lattice distortion, was observed in the pseudocubic structure of the x = 0.40, 0.46, and 0.50 compounds. The present results suggest that the pseudocubic phase is characterized by nanodomain structures consisting of non-polar cubic and polar rhombohedral structures. (C) 2010 The Japan Society of Applied Physics

引用

页数：3

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