Electric field induced monoclinic phase in (Na0.52K0.48)(Nb1-ySby)O3 ceramics close to the rhombohedral-orthorhombic polymorphic phase boundary

被引：22

作者：

Fu, Jian ^{[1
]}

Zuo, Ruzhong ^{[1
]}

Gao, Xingyu ^{[2
]}

机构：

[1] Hefei Univ Technol, Inst Elect Ceram & Devices, Sch Mat Sci & Engn, Hefei 230009, Peoples R China

[2] Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Pudong New Area, Shanghai 201204, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 18期

基金：

中国国家自然科学基金;

关键词：

PIEZOELECTRIC PROPERTIES;

D O I：

10.1063/1.4828713

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electric field induced structural transformation in (Na0.52K0.48)(Nb(1-y)Sby)O-3 ceramics near the rhombohedral (R)-orthorhombic (O) phase boundary was investigated by means of ex-situ and in-situ synchrotron x-ray diffraction and dielectric measurements. An intermediate monoclinic (M) phase was irreversibly induced from the O phase by poling, leading to a modified polarization rotation path along R-M-O. By comparison, the reversibility of R-M phase transition would cause the phase instability. Both aspects were believed to be responsible for the high piezoelectric activity near the R-O phase boundary. Moreover, enhanced piezoelectric properties were also found to correlate with the thermal stability of the induced M phase. (C) 2013 AIP Publishing LLC.

引用

页数：4

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