Overpoling resistance of [011]-poled Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals -: art. no. 202902

被引：21

作者：

Shanthi, M ^{[1
]}

Chia, SM ^{[1
]}

Lim, LC ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 112960, Singapore

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 20期

关键词：

D O I：

10.1063/1.2130716

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

[011]-poled flux-grown Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-32%PT) single crystals are susceptible to overpoling at 0.4 kV/mm and higher fields, leading to degraded properties. This has been linked to the presence of an appreciable amount of the orthorhombic phase induced by the high poling fields. In contrast, flux-grown PMN-30%PT and PMN-31%PT single crystals show no signs of overpoling up to 2.0 kV/mm, both of which remain predominantly rhombohedral with a small amount of induced orthorhombic phase. Among the three compositions examined, flux-grown PMN-30%PT single crystal gives the best [011]-poled properties, with K-T=5500-6000, d(31)=2100-2600 pC/N, and k(31)=0.90-0.94. The present work further shows that, for a given crystal composition, flux-grown PMN-PT single crystals exhibit superior overpoling resistance to their melt-grown counterparts. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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