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
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页数：3
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