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In‐situ X‐ray diffraction study of an electric field induced phase transition and giant strain in Na 0.5 Bi 0.5 TiO 3 – x %BaTiO 3 lead‐free single crystals
Author(s) -
Ge Wenwei,
Zhang Qinhui,
Wang Zhiguang,
Yao Jianjun,
Li Jiefang,
Luo Haosu,
Viehland D.
Publication year - 2011
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201105280
Subject(s) - tetragonal crystal system , diffraction , piezoelectricity , phase transition , materials science , electric field , x ray crystallography , strain (injury) , in situ , crystallography , x ray , condensed matter physics , chemistry , crystal structure , optics , composite material , physics , medicine , organic chemistry , quantum mechanics
A giant electric field ( E ) induced strain of ε = 0.60% has been observed for Na 0.5 Bi 0.5 TiO 3 –5.6%BaTiO 3 single crystals under E = 20 kV/cm at 130 °C. In‐situ X‐ray diffraction (XRD) revealed that this induced transition was between pseudocubic and tetragonal structures. Our work provides a potential alternative to lead‐based piezoelectric materials. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)