科研之友
微信
新浪微博
Facebook
分享链接
摘要
(Ni75Fe25)(69)(ZnO)(31) granular films with various thicknesses were deposited by magnetron co-sputtering. The dependence of soft-magnetic properties and high frequency characteristics on film thickness was investigated systematically. Static magnetic research exhibits that thin films showed evident in-plane uniaxial magnetic anisotropy. And an interesting phenomenon was found that the magnetic anisotropy field H-k increases with increasing film thickness t, which is not found in previous reports. However, no obvious variation with film thickness t was found for the coercivity (H-ce) in easy axis and the coercivity (H-ch) in hard axis. The measurements of high frequency characteristics show that the ferromagnetic resonance frequency f(r) increases with increasing film thickness t, which is ascribed to the increase of the magnetic anisotropy field H-k. The films fabricated with appropriate thickness exhibits good high frequency properties and can be applied in the sensors operated in high frequency range.
