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Piezoelectric instability in ⟨011⟩-oriented Pb(B1/3IB2/3II)O3-PbTiO3 crystals

被引：92
作者：
Viehland, D [1 ]
Amin, A
Li, JF
机构：
[1] USN, Seasyst Command, Newport, RI 02841 USA
[2] Univ Rhode Isl, Dept Phys, Kingston, RI 02845 USA
来源：
APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 07期
关键词：
D O I：
10.1063/1.1392307
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Piezoelectric investigations of < 011 > -oriented Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PMN-PT) and Pb(Zn1/3Nb2/3)O-3-PbTiO3 (PZN-PT) crystals have revealed high electromechanical properties. Piezoelectric constants of up to 5000-6000 pC/N and electromechanical coupling coefficients of up to 0.95 have been observed near the ferroelectric rhombohedral to ferroelectric tetragonal transformation. The data clearly demonstrate that the enhanced electromechanical performance of oriented piezocrystals is not constrained to the < 001 > orientation. Furthermore, analysis of the data has demonstrated the presence of piezoelectric instability between two ferroelectric states at a critical transformation temperature and/or electric field. (C) 2001 American Institute of Physics.
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页码：1006 / 1008
页数：3
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