| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10624359 | Ceramics International | 2016 | 6 Pages |
Abstract
Dielectric relaxation properties of the ternary relaxor-based ferroelectric 0.24Pb(In1/2Nb1/2)O3-0.49Pb(Mg1/3Nb2/3)O3-0.27PbTiO3 single crystal have been investigated as a function of temperature (300-570Â K) in the frequency range from 100Â Hz to 100Â kHz. It was found that the variation of the permittivity maximum temperature Tm with frequency obeys the Vogel-Fulcher relationship. The high-temperature (T>Tm) side of the dielectric permittivity deviated from the Curie-Weiss law, but can be described by the Lorenz-type relationship. The coercive field obtained from the polarization hysteresis loops gradually decreases with increasing temperature, and the remnant polarization persists above Tm due to the existence of polar nanoregions (PNRs).
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Enwei Sun, Xudong Qi, Zhongyuan Yuan, Shijing Sang, Rui Zhang, Bin Yang, Wenwu Cao, Liancheng Zhao,