ASTRACT Layered magnetostrictive/piezoelectric structures are multifunctional due to their response to mechanical and electromagnetic forces. Investigations at 10 Hz–10 GHz on oxide heterostructures reveal evidence for strong ME interactions. Systems studied include nickel ferrite-lead zirconate titanate (PZT) and yttrium iron garnet (YIG)-lead magnesium nioate/lead titanate (PMN-PT). Our efforts have resulted in: (i) the oservation of a giant low frequency ME effect in nickel ferrite-PZT; (ii) oservation and theory of ME coupling at electromechanical resonance (EMR) for the composite; and (iii) theory and measurements of microwave ME effects in YIG/PMN-PT, at ferromagnetic resonance for YIG. The composites are potential candidates for smart sensors and signal processing devices, such as electric field tunale filters and phase shifters.
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Srinivasan et al. (2005) studied this question.
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