Crystallographic Structural and Magnetic Properties of FePt Nanoparticles
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 sh...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
H. : ĐHQGHN
2017
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| Subjects: | |
| Online Access: | http://repository.vnu.edu.vn/handle/VNU_123/56080 |
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| Institution: | Vietnam National University, Hanoi |
| Language: | English |
| Summary: | 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. |
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