期刊
APPLIED PHYSICS LETTERS
卷 106, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4905355
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资金
- SERB of the Department of Science and Technology, Government of India [SERB/F/5046/2013-14]
- ISRO-IISc, Space Technology Cell
The crystal structure, ferroelectric, and piezoelectric behaviors of the Ba(Ti1-xCex)O-3 solid solution have been investigated at close composition intervals in the dilute concentration regime. Ce concentration as low as 2 mol. % induces tetragonal-orthorhombic instability and coexistence of the phases, leading to enhanced high-field strain and direct piezoelectric response. Detailed structural analysis revealed tetragonal + orthorhombic phase coexistence for x = 0.02, orthorhombic for 0.03 <= x <= 0.05, and orthorhombic + rhombohedral for 0.06 <= x <= 0.08. The results suggest that Ce-modified BaTiO3 is a potential lead-free piezoelectric material. (C) 2015 AIP Publishing LLC.
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