Direct chemical synthesis of L10 FePt nanoparticles

被引：8
|
作者：
Tzitzios, Vasilis [1 ,2 ]
Basina, Georgia [1 ,2 ]
Colak, Levent [1 ]
Niarchos, Dimitrios [2 ]
Hadjipanayis, George [1 ]
机构：
[1] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
[2] N Carolina SR Demokritos, Inst Mat Sci, Athens 15310, Greece
来源：
JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期
关键词：
REDUCTION;
D O I：
10.1063/1.3559484
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Ordered faced-centered tetragonal (fct) FePt nanoparticles were successfully synthesized by a chemical method using presynthesized Au nanoparticles as the "catalyst." The reaction temperature was also studied and it seems that there is an optimum value of 360 degrees C where the fct structure is formed. The particles have a mean diameter of 3.5-15 nm and the x-ray diffraction patterns exhibited (001) and (110), which signified the tetragonal phase formation. Room temperature magnetic hysteresis loops show that the FePt particles have coercive fields between 0.68 and 2.8 kOe. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3559484]
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