Dang, Duc Dung and Duong, Van Thiet and Dorj, Odkhuuc and Le, Viet Cuong and Nguyen, Hoang Tuan and Sunglae, Cho (2015) Room-temperature ferromagnetism in Fe-doped wide band gap ferroelectric Bi0.5K0.5TiO3 nanocrystals. Materials Letters, 156 . pp. 129-133.
Full text not available from this repository.Abstract
We reported the room-temperature ferromagnetism in iron doped Bi0.5K0.5TiO3 nanocrystals. The reduction of band gap from 3.31 eV to 2.27 eV was obtained after introduction of iron to Bi0.5K0.5TiO3 with concentration up to 7 mol%. The first-principles density function theory (DFT) calculations indicate that the reduction of band gap is due to the presence of conduction bands of iron, and the ferromagnetism in iron-doped Bi0.5K0.5TiO3 samples was explained by the exchange splitting between spin subbands through crystal field theory. This method may provide an available way to get single-phase multiferroics and resolve the problem of the scarcity of single-phase multiferroics in nature.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering Physics |
| Divisions: | Faculty of Engineering Physics and Nanotechnology (FEPN) |
| Depositing User: | Ms. Cam Le Tran Thi |
| Date Deposited: | 11 Jul 2016 12:36 |
| Last Modified: | 11 Jul 2016 12:37 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/1807 |
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