NDLI: Structural modification and piezoelectric properties in Bi$_{0.5}$Na$_{0.5}$TiO$_{3}$–BaTiO$_{3}$–SrTiO$

Content Provider	Springer Nature Link
Author	Li, Wei Li, Peng Zeng, Huarong Hao, Jigong Yue, Zhenxing Zhai, Jiwei
Copyright Year	2015
Abstract	The structure and piezoelectric properties of the (0.935−x)Bi$_{0.5}$Na$_{0.5}$TiO$_{3}$–0.065BaTiO$_{3}$–xSrTiO$_{3}$ (BNT–BT–ST) thin films as a function of ST substitution were investigated. The ST substitution was found to induce downward shift of the depolarization temperature (T $_{d}$). The BNT–BT–ST thin films underwent a transition from ferroelectric phase to relaxor pseudocubic phase with the increase of ST content. The increased polarization of the compositions at around x = 0.18–0.20 was related to three possible mechanisms: polarization extension favoured by the simultaneous presence of polar and non-polar phases; the occurrence of electric field-induced transitions from weakly polar relaxor to ferroelectric polar phase; and the enhanced polarizability of the crystal structure induced by the weakening of the Bi–O bond. The enhanced piezoelectric coefficient d $_{33,f}$ of 120 pm/V was obtained for the compositions at around x = 0.18–0.20. It was attributed to the phase transition of ferroelectric to relaxor pseudocubic being at near room temperature.
Starting Page	215
Ending Page	220
Page Count	6
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	27
Issue Number	1
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2015-09-10
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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