Micross

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On-chip Tunable Magnetoelectric Components
Keywords: magnetoelectric, ferrite, co-firing
Magnetoelectric (ME) effect has been the focus of interest in scientific and industrial community. Most of the known single phase materials suffer from the drawback that ME effect is considerably weak even at the low temperatures and thus limits there applicability. The better alternatives are ME composites which have large magnitudes of the ME voltage coefficient. In this presentation, we present our results on ME particulate composites synthesized using modified controlled precipitation technique, co-firing technique, sol-gel and aeroseol deposition and high pressure compaction. We clearly delineate the role of various microstructural variables towards the ME response including grain size, composite geometry, composition of individual phases, and crystal orientation. These studies also illustrate the role of interfacial microstructure towards elastic coupling and results will be discussed with reference to nanoscale composite architectures. Next we describe the application of the magnetoelectrics in developing on-chip components. Results will be presented for the tunable transformers, magnetic field switches, and tunable capacitors.
Shashank Priya, Professor
Virginia Tech
Blacksburg, VA
USA


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