Magnetic and microwave properties of (Ni,Co)Fe2O4-ferroelectric and (La,Ca,Sr)MnO3-ferroelectric multilayer structures

摘要

Structural, magnetic and ferromagnetic resonance characterization studieshave been performed on lay-ered ferromagnetic-ferroelectric oxides that showstrong magnetoelectric coupling. The samples contained thick films of ferritesor substituted lanthanum manganites for the ferromagnetic phase and leadzirconate titanate for the ferroelectric phase, and were sintered hightemperatures. Results indicate defect free ferrites, but deterioration ofmanganite parameters due to diffusion at the interface and accounts for poormagnetoelectric coupling in manganite-PZT samples.