| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1595206 | Solid State Communications | 2007 | 4 Pages |
The dielectric behavior and the ferroelectric properties (hysteresis loops) of Pb0.94La0.06(Zr0.80Ti0.20)0.985O3 ferroelectric ceramics are analyzed considering the coexistence of the ferroelectric (FE) and the antiferroelectric (AFE) phases. The x-ray diffraction patterns and polarized light microscopy results reveal that FE and AFE ordering coexist. The dielectric analysis suggests two phase transitions. The first around 75 ∘C, which is associatted to a ferroelectric (rhombohedral)–antiferroelectric (orthorhombic) phase transition; the second around 120 ∘C, associated with an antiferroelectric (orthorhombic)–paraelectric (cubic) phase transition. The temperature dependence of hysteresis loops shows a double-loop-like behavior for temperatures above 75 ∘C, showing a typical characteristic of an induced ferroelectric-antiferroelectric transformation.
