| Authors: | Nguyen, Thi Thanh Van Trương, Thanh Trung Nguyen, Hoang Nam Nguyen, Hoang Luong |
| Keywords: | FePt nanoparticles;coercivity;squareness;annealing temperature;sonochemistry |
| Issue Date: | 2014 |
| Publisher: | H. : ĐHQGHN |
| Series/Report no.: | Vol. 30;No. 1 (2014) |
| Abstract: | Fe60Pt40 nanoparticles have been successfully prepared by sonochemistry method from the solution of Fe(C2H3O2)2 and H2PtCl6. The as-prepared sample then has been annealed at temperatures from 450oC to 650oC. Annealed samples have ordered L1o phase with face-centered tetragonal (fct) structure and show hard magnetic properties. The nanoparticles annealed at 550oC show highest coervicity of 4.36 kOe measured at room temperature. The annealed-temperature dependence of the coercivity is consistent with the appearance of the order phase L1o in the samples. |
| Description: | p. 1-7 |
| URI: | http://repository.vnu.edu.vn/handle/VNU_123/56080 |
| ISSN: | 2588-1124 |
| Appears in Collections: | Mathematics and Physics |
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