| 摘要 |
PROBLEM TO BE SOLVED: To provide a Z-type hexagonal ferrite which is significantly improved in high frequency properties of magnetic permeability in order to correspond to a high frequency band where the utilization of radio wave is expected to be further increased in the future.SOLUTION: There is provided a Z-type hexagonal ferrite which is represented by the composition formula, ACoFeOand has a resonance frequency of 2 GHz or more, wherein A is any one of Ba, Sr, Caand Pband the value of x is 0.3 or more and less than 2.0. |
