Magnetic properties of CoxPt100 - x nanoparticles
Truong, Thanh Trung Do, Thi Nhung Nguyen, Thi Thanh Van Nguyen, Hoang Nam Nguyen, Hoang Luong CoxPt100- x nanoparticles (x=50, 59, and 73) were prepared by the chemical reduction of Cobalt (II) chloride and Chloroplatinic acid, then ultrasonicated for 2 h. After annealing at various temperatures from 450 C to 700 C for 1 h, structure change was observed and samples show hard magnetic prop-erties which depend strongly on chemical composition and annealing temperature. The highest coer-civity value of 1.15 kOe was obtained at room temperature for sample with x =50 annealed at 500 C. Chemical reduction combined with ultrasound is a useful method to prepare CoPt nanoparticles Chi tiết xin mời tham khảo tại http://repository.vnu.edu.vn/handle/VNU_123/58327 Title: Magnetic properties of CoxPt100 - x nanoparticles Authors: Truong, Thanh Trung Do, Thi Nhung Nguyen, Thi Thanh Van Nguyen, Hoang Nam Nguyen, Hoang Luong Keywords: CoPt;Magnetic nanoparticles;L10struct...