| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8016088 | Materials Letters | 2016 | 4 Pages |
Abstract
The PbTi1-xFexO3-δ (xPTFO) ferroelectric ceramics have been studied by means of structural characterizations, optical and magnetic measurements. All the samples show a tetragonal perovskite structure with uniform grains. In Fe-doped PbTiO3, the oxygen-vacancies were confirmed by an X-ray photoelectron spectroscopy, which affect the materials' optical and magnetic properties. The optical bandgap of xPTFO decreases significantly with increasing Fe content, expressed by (2.78-5.05x) eV. Magnetic measurements show a ferromagnetic-paramagnetic transition occurs in xPTFO ceramics, which can be attributed to the competition between ferromagnetic and paramagnetic/antiferromagnetic components. These findings will open up a route to design optimal perovskite compounds for photovoltaic devices and magnetic storage.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Tuo Zheng, Hongmei Deng, Wenliang Zhou, Pingxiong Yang, Junhao Chu,