Unique electromagnetic properties of the zinc ferrite nanofiber

摘要

The ZnFe_2O_4 ferrite nanoparticle and nanofiber were synthesized by electrospinning method. The phase composition, morphology, magnetic and electromagnetic properties were analyzed. The results showed that both the samples exhibited a pure phase of spinel type ferrite. The ZnFe_2O_4 ferrite nanoparticle was aggregated, while the ZnFe_2O_4 ferrite nanofiber performed the homogeneous nano-fibrous shape as well as single-particle-chain structure. The magnetic analysis indicated that the ZnFe_2O_4 ferrite nanofiber showed ferromagnetic behaviour. Moreover, the dielectric loss and magnetic loss properties of ZnFe_2O_4 ferrite nanofiber were both enhanced due to its better dipole polarization, interfacial polarization and shape anisotropy.