期刊
JOURNAL OF APPLIED PHYSICS
卷 107, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3427566
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资金
- National High Technology Research and Development Program (863 program) of China [2007AA03Z106, 2006AA03Z431]
- SAST [09520709200]
The ferroelectric hysteresis loops of 63PbTiO(3)-37BiScO(3) ceramics were measured under sinusoidal electric fields in the range of frequency from 0.1 to 100 Hz and field from 5 to 55 kV/cm. The fitting results showed two linear relations existed between the logarithm of hysteresis area < A > and the logarithm of the amplitude of field E-0 in the first and third field region. In the second region, no linear relation existed due to polarization reversal. These three-stage behaviors were distinct from the existing two-stage behaviors. The slopes in the third stage increase with the increasing of frequency, which can be attributed to dielectric loss under high frequency. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3427566]
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