“…Besides, the low H k of granular film is not suitable for the application in high-frequency systems even though the resistivity (q) is high. In order to adjust the H k with a large range on the basis of the high M s , one possible way is constructing the multilayer thin films by inserting nonmagnetic insulating phase (such as SiO 2 , Al 2 O 3 ) during deposition process to form oxide interlayer [8,9]. The inserted nonmagnetic insulating phase can not only interrupt the continuous growth of magnetic layer, but also increase the resistance and thus reduce the eddy current loss.…”