期刊
AIP ADVANCES
卷 8, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5007756
关键词
-
资金
- [DOE-FG02-90ER45413]
This work focuses on the study of the magnetic and structural properties of chemically synthesized FePt1-xNix nanoparticles, with Ni content x in the range 0.2-0.4. We report the effect of Ni substitution on the L1(0) structure, on both the as-synthesized and annealed nanoparticles. A decrease in nanoparticle size as well as in chemical order is observed with an increase in Ni content, for both the as-made and annealed nanoparticles. The results also show that the post annealing procedure at 700 degrees C significantly enhanced the L1(0) ordering of the nanoparticles. Substitution of nickel leads to a decrease in coercivity from 14.9 kOe in FePt to 0.8 kOe for FePt0.6Ni0.4 alloy, while the magnetization at 3 T is increased from 48 emu/g to 88 emu/g. (c) 2017 Author(s).
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