摘要
(FePt)85Cu15 nanoparticles were successfully prepared by alternate reduction of metal salts in aqueous medium.Detailed investigations on the correlation between the magnetic and structural properties of these nanoparticles are presented as a function of annealing temperature.Both the X-ray diffraction patterns and the magnetic hysteresis loop measurements show the existence of L10-FePt phase at a relative low annealing temperature.It is proved that the Cu additive and alternate reduction are very effective methods in reducing the ordering temperature of FePt nanoparticles.
基金
supported by the National Key Research and Development Program(2016YFB1100101)
the National Natural Science Foundation of China(51471135)
Shaanxi Science and Technology Program(2017KW-ZD-07)
Shenzhen Fundamental Research Program.
