%A Nam, Nguyen Hoang %A Hoi, Nguyen Tien %A Trung, Truong Thanh %A Hong, Tran Thi %A Quynh, Luu Manh %A Luong, Nguyen Hoang %D 2022 %T Effect of Annealing Time on Structural and Magnetic Properties of Fe68Pd32 Nanoparticles Synthesized by Sonoelectrodeposition %K %X Fe 68 Pd 32 nanoparticles were prepared by sonoelectrodeposition with subsequent annealing at 600 o C for a series of times from 1 h to 6 h. The annealing transformed disordered face-centered cubic (fcc) phase in the as-prepared samples into a multi-phase material containing an ordered L1 0 FePd, fcc FePd and body-centered cubic (bcc) Fe phases. After annealing at 600°C for 6 h the hard magnetic phase L1 0 -FePd and soft magnetic fcc-FePd phase coexist. The structural and magnetic properties of the samples were studied in dependence of annealing time. The decrease of coercivity with increasing annealing time from 1 h to 4 h is suggested to occur by formation of multi-L1 0 domain particles, while the increase of coercivity with increasing annealing time from 4 h to 6 h is proposed due to the multiphase nature of the nanoparticles samples. %U https://js.vnu.edu.vn/MaP/article/view/4731 %J VNU Journal of Science: Mathematics - Physics %0 Journal Article %R 10.25073/2588-1124/vnumap.4731 %V 38 %N 2 %@ 2588-1124 %8 2022-06-23