Journal
APPLIED PHYSICS LETTERS
Volume 108, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4939851
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Funding
- National Natural Science Foundation of China [51332009, 51562014, 51262009, 51372258, 11304333, 51272268]
- Jiangxi Natural Science Foundation [20142BAB216009, 20133ACB20002]
- Foundation of Training Academic and Technical Leaders for Main Majors of Jiangxi [2010DD00800]
- Youth Innovation Promotion Association CAS
- PhD research startup foundation of Jingdezhen Ceramic Institute
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A lead-free single crystal 0.92(Na0.5Bi0.5)TiO3-0.06BaTiO(3)-0.02(K0.5Na0.5)NbO3 (NBT-6BT-2KNN) with dimension of Phi 35mm x 10mm is grown by a precisely controlled top seeded solution growth method. The < 001 > oriented single crystals have excellent piezoelectric properties with a giant strain of 0.83% at 28 kV/cm. Application of an electric-field >= 14 kV/cm leads to a phase transition from pseudocubic to coexistence of tetragonal and pseudocubic. A strong ferroelectric domain texture occurs during the phase transition. Furthermore, the variation of tetragonal phase fraction agrees well with the macroscopic strain curve, demonstrating that the induced tetragonal phase plays a critical role in the high strain property. (C) 2016 AIP Publishing LLC.
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