Ferroelectric polarization and piezoelectric properties of layer-structured K0.5Bi4.5Ti4O15 single crystals

被引：33

作者：

Noguchi, Yuji ^{[1
]}

Suzuki, Muneyasu ^{[1
]}

Kitanaka, Yuuki ^{[1
]}

Teranishi, Shunsuke ^{[1
]}

Miyayama, Masaru ^{[1
]}

机构：

[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 03期

关键词：

D O I：

10.1063/1.2956397

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Single crystals of ferroelectric K0.5Bi4.5Ti4O15 with a Bi-layered structure were grown by the flux method, and the properties of polarization hysteresis, piezoelectric strain, and leakage current were investigated along the polar a axis at 25 degrees C. K0.5Bi4.5Ti4O15 crystals exhibited a large remanent polarization of 31 mu C/cm(2), which suggests that K0.5Bi4.5Ti4O15 has the largest spontaneous polarization among Bi layer-structured ferroelectrics with four TiO6 layers in the perovskite blocks. Strain measurements showed that the piezoelectric strain constant was 31 pm/V. (C) 2008 American Institute of Physics.

引用

页数：3

共 34 条

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