Growth and characterization of Pb(Lu1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 ternary piezo-/ferroelectric crystals

被引：5
作者：
Liu, Ying [1 ,2 ]
He, Chao [1 ]
Yang, Xiaoming [1 ,2 ]
Li, Xiuzhi [1 ]
Wang, Zujian [1 ]
Huang, Zhigao [2 ]
Lai, Fachun [2 ]
Long, Xifa [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
[2] Fujian Normal Univ, Coll Phys & Energy, Fuzhou 350117, Fujian, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 675卷
基金：
中国国家自然科学基金;
关键词：
Crystal growth; Crystal structure; Electrical properties; Ferroelectric crystal; SINGLE-CRYSTALS; ELECTRICAL-PROPERTIES; PIEZOELECTRIC PROPERTIES; PHASE-DIAGRAM; SYSTEM; CERAMICS; NIOBATE;
D O I：
10.1016/j.jallcom.2016.03.092
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Piezo-/ferroelectric crystals of Pb(Lu1/2Nb1/2)O-3-Pb(Mg1/3Nb2/3)O-3-PbTiO3 ternary solid solution system with high Curie temperature, in the vicinity of morphotropic phase boundary (MPB) region, are grown by the top-seeded solution growth (TSSG) method for the first time. The compositions and structures of the crystals are analyzed, all the structures are found to have pure perovskite structure using X-ray diffraction analysis. Di-/piezo-/ferroelectric properties of the crystals are also characterized systematically. The Curie temperature T-c and coercive field Ec, increase gradually with increasing PbTiO3 content. In particular, the crystal with composition 0.34PLN-0.31PMN-0.35PT possesses excellent electric properties including the Curie temperature, the rhombohedraletetragonal phase transition temperature, the piezoelectric coefficient, the remnant polarization and the coercive field, which are T-c = 228 degrees C, T-RT = 156 degrees C, d(33) = 2092 pC N-1, Pr = 35.5 mu C cm(-2) and E-c = 8.1 kV cm(-1), respectively, making it a promising material for transducers or detectors in a wide temperature range. (C) 2016 Elsevier B. V. All rights reserved.
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页码：8 / 14
页数：7
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