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Composition- and oxidation-controlled magnetism ternary FeCoNi nanocrystals 被引量:1
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作者 Maogang Gong Ridwan Sakidja Shenqiang Ren 《Nano Research》 SCIE EI CAS CSCD 2016年第3期831-836,共6页
Ternary FeCoNi metallic nanostructures have attracted significant attention due to their high saturation magnetization, unique mechanical properties, and large corrosion resistance. In this study, we report a controll... Ternary FeCoNi metallic nanostructures have attracted significant attention due to their high saturation magnetization, unique mechanical properties, and large corrosion resistance. In this study, we report a controlled synthesis of ternary FeCoNi nanocrystals using solution-based epitaxial core-shell nanotechnology. The thickness and stoichiometry of the FeCoNi nanocrystals affect their magnetic characteristics, which can be controlled by a phase transformation-induced tetragonal distortion. Furthermore, surface oxidation of the stoichiometry-controlled FeCoNi nanostructures can drastically enhance their magnetic coercivity (up to 8,881.60e for AuCu-FeCo), and optimize the AuCu-FeCo08Ni0.2 performance corresponding to the saturated magnetization of 134.4 emu-g-1 and coercivity of 4,036.70e, which opens the possibility of developing rare-earth free high energy nanomagnets. 展开更多
关键词 iron-cobalt-nickel NANOMAGNETISM magnetocrystallineanisotropy core-shell nanocrystals
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