Journal
JOURNAL OF APPLIED PHYSICS
Volume 113, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4794022
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Funding
- Natural Science Foundation of China [11264010, 51002036, 50962004, 21061004, 51102058]
- Department of Science and Technology of Guangxi [12118017-13, 10-046-01, 11-031-03, 11107006-42]
- Natural Science Foundation of Guangxi [BA053007]
- Program for Excellent Talents in Guangxi Higher Education Institutions
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The crystal structure of (1-x) BaTiO3-xBiAlO(3) (x = 0, 0.02, 0.05, 0.08, and 0.1) ceramics was determined using X-ray diffraction and Raman spectroscopy at room temperature, which revealed a phase transition from tetragonal to rhombohedral with increasing x. The dielectric properties were studied as a function of temperature at different frequencies, which indicated that the phase transition temperature (T-m) decreased with increasing x. The relaxor behavior was observed by frequency and temperature dependent dielectric permittivity. The Lorenz-type quadratic law was used to characterize the dielectric permittivity peaks near T-m of high-temperature slopes at 1 MHz. The temperatures T-m of dielectric permittivity peaks fit very well with the Vogel-Fulcher law in x = 0.05 and x = 0.1. The polarization hysteresis loops and electrostrictive were displayed at room temperature. The sample for x = 0.1 exhibits a slim loop with negligible hysteresis and a subtle linear feature, which is a promising transducer material for use as an active element. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794022]
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