期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 422, 期 -, 页码 470-474出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2016.09.047
关键词
Cu doping; FePt nanoparticles; Phase transition; Coercivity
资金
- National Nature Science Foundation of China [11574077]
- Open Research Fund Program of the State Key Laboratory of Lowdimensional Quantum Physics [KF201411]
In this work, ternary Cu doped FePt nanoparticles were prepared in hexadecylamine at 320 degrees C by choosing FeCl2 as the Fe source. The experimental results showed that without Cu doping the as-prepared FePt nanoparticles possessed fcc structure and gradually exhibited typical fcl diffraction peaks after increasing the Cu doping concentration. TEM images showed that the FePt nanoparticles had larger size and wider size distribution after introducing Cu additive. Magnetic property measurement showed that a coercivity of 4800 Oe was obtained when the composition of the ternary nanoparticles reached Fe35Pt45Cu20, in which the content of Fe+Cu was higher than Pt. The research indicates that Cu doping promotes the phase transition of FePt nanoparticles at temperature as low as 320 degrees C.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据