| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1651628 | Materials Letters | 2008 | 4 Pages |
Abstract
Structure parameters and field-dependent magnetic properties of BaFe12O19 nanoparticles synthesized from different Fe/Ba ratios by reverse micelle technique were investigated. Pure barium ferrite phase and best magnetic properties could be obtained for the sample prepared from Fe/Ba ratio of 11, with grain size in the range of 20–30 nm as shown by TEM. The existence of α-Fe2O3 in other materials obviously decreases the magnetization properties, but coercivities of the materials from Fe/Ba ratio of 9.5 and 10 are abnormally even higher than the prepared pure BaFe12O19. The abnormal high coercivities of some prepared materials were explained from anisotropy mechanisms of nanoparticles.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Ping Xu, Xijiang Han, Hongtao Zhao, Zhihua Liang, Jinfu Wang,