| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8001589 | Journal of Alloys and Compounds | 2014 | 4 Pages |
Abstract
Structure and dielectric properties of complex perovskite BaTi0.8(Ni0.5Nb0.5)0.2O3 ceramics have been investigated by X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR) and dielectric spectroscopy. XRD and Raman data show that the BaTi0.8(Ni0.5Nb0.5)0.2O3 ceramics have a superstructure unit cell with Fm3¯m space group. The dielectric characteristics in the 175-250 K region are confirmed to be an incipient ferroelectric response with frequency dependent relaxation, which is attributed to the NiNi3+2+â²-VO·· dipolar defect.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Zhengliang Huang, Jingji Zhang, Ludong Ji, Jiangying Wang, Jiwei Zhai, Faxin Yu,