Magnetic and dielectric properties of laminated Ca(Zn1/3Nb2/3)O-3-Ni0.8Zn0.2Fe2O4 magneto-dielectric composites

摘要

Laminated Ca(Zn1/3Nb2/3)O-3(CZN)-Ni0.8Zn0.2Fe2O4(NZO) composites were prepared by the conventional solid-state sintering method. Compared with the common polycrystalline ceramics, the, permeability of the CZN-NZO composites can be much enhanced by the laminated structure. Meanwhile, all the samples show excellent magneto-dielectric properties in a wide frequency range from 10 MHz to 1 GHz. The results indicate that this kind of magneto-dielectric composites can be used in the high frequency communications for the capacitor-inductor integrating devices such as miniaturized antennas, filters and electromagnetic interference suppression devices. The permeabilities of the laminated CZN-NZO composites are well fitted with the Maxwell-Garnett mixing law. (C) 2016 Elsevier Ltd. All rights reserved.