| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10644532 | Computational Materials Science | 2008 | 5 Pages |
Abstract
The polarization properties of Na1/2Bi1/2TiO3 (NBT) lead-free piezoceramics system with the perovskite ABO3 structure are studied by a first-principles-derived approach. The results show that spontaneous polarization exists in the NBT system. The ferroelectric properties are enhanced because of the displacement of the B-site cations. The complex substitution of Ba2+, Sr2+ and Mn4+ cations can reduce the coercive field, and increase the strength of the spontaneous polarization, thus improving the ferroelectric properties. The measured P-E hysteresis loops are in good agreement with results of calculations.
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Authors
J. Zhou, W.W. Peng, D. Zhang, X.Y. Yang, W. Chen,