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

Magnetization curves and ferromagnetic resonance parameters have been measured on multilayer ferromagnetic-ferroelectric structures that show strong magnetoelectric coupling. The structures contained thick films of ferrites or substituted lanthanum manganites for the ferromagnetic phase and lead zirconate titanate for the ferroelectric phase, and were sintered at high temperatures. Results indicated defect free ferrite films with magnetic properties corresponding to their bulk ferromagnetic counterparts and deterioration of manganite film magnetic parameters due to diffusion at the interfaces. (C) 2002 Elsevier Science B.V. All rights reserved.