Engineering Research Center of Electromagnetic Wave Absorbing Materials, Ministry of Education, Chengdu 610054, China.
Nanoscale Res Lett. 2013 May 4;8(1):212. doi: 10.1186/1556-276X-8-212.
The high-frequency properties of the FeCo-SiO2 monolayer nanogranular films and FeCo/(FeCo)0.63(SiO2)0.37 multilayer nanogranular films which were elaborated on flexible substrates by magnetron sputtering system were studied. Compared to the monolayer films with the same FeCo content, the multilayer structures comprised of FeCo/(FeCo)0.63(SiO2)0.37 exhibit more excellent properties that the real and imaginary parts of permeability, more than the double value of the monolayer, increase to 250 and 350, respectively. The variation was considered owing to the reduction of the anisotropy field.
采用磁控溅射系统在柔性衬底上制备了 FeCo-SiO2 单层纳米颗粒膜和 FeCo/(FeCo)0.63(SiO2)0.37 多层纳米颗粒膜，并研究了它们的高频性能。与具有相同 FeCo 含量的单层膜相比，由 FeCo/(FeCo)0.63(SiO2)0.37 组成的多层结构具有更优异的性能，磁导率的实部和虚部分别增加到 250 和 350，超过单层的两倍。这种变化被认为是由于各向异性场的减小。
