Creation of Spin-Nanostructure with Extreme High Magnetic Moment

为了获得一种具有高饱和磁化强度的新型磁性材料，建立了α”-Fe16N2纳米粒子的合成方法和铁基纳米粒子组装的制备方法。通过合成新的前驱体和优化工艺条件，首次成功合成了α”-Fe16N2单相纳米粒子，其饱和磁化强度为234emu/g。通过应用直径为10nm的铁纳米颗粒，新开发的纳米颗粒混凝方法可以将铁纳米颗粒组装体的体积分数控制在0.5%到40%之间。

In order to obtain a new magnetic material with high saturation magnetization, establishment of synthesis method of alpha"-Fe16N2 nanoparticles and fabrication method of Fe-based nanoparticle assembly. By synthesizing new precursors and optimizing process conditions, single-phase of alpha"-Fe16N2 nanoparticles was successfully synthesized for the first time, whose saturation magnetization was 234emu/g. By applying Fe nanoparticles with 10nm in diameter, newly developed coagulation method of nanoparticles could control a volume fraction from 0.5% to 40% of the Fe nanoparticle assembly.