Crystallographic Structural and Magnetic Propertiesof FePt Nanoparticles

Fe 60Pt 40nanoparticles have been successfully prepared by sonochemistry method from the solution of Fe(C2H3O2)2and H 2PtCl 6. The as-prepared sample then has been annealed at temperatures from 450 o C to 650 o C. Annealed samples have ordered L1ophase with face-centered tetragonal (fct) structure and show hard magnetic properties. The nanoparticles annealed at 550 o C show highest coervicity of 4.36 kOe measured at room temperature. The annealed-temperature dependence of the coercivity is consistent with theappearance of the order phase L1 oin the samples.

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Nguồn http://repository.vnu.edu.vn
Tác giả Nguyen Thi Thanh Van, Truong Thanh Trung, Nguyen Hoang Nam, Nguyen Hoang Luong
Người bảo dưỡng Đại học Quốc gia Hà Nội
Last Updated Tháng 8 16, 2018, 10:09 (ICT)
Được tạo ra Tháng 4 5, 2018, 15:43 (ICT)