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Micro-Scale Magnetoelectric Composite Devices

David Flynn, Chris Popov, Marc Desmulliez, Paul Record
Earlier we demonstrated that macro-scale samples of magnetoelectric (ME) composites could be successfully used as magnetic energy harvesters ... [read more]

Earlier we demonstrated that macro-scale samples of magnetoelectric (ME) composites could be successfully used as magnetic energy harvesters; as low magnetic field sensors; and as duplex communicators. However, any practical application of these composites would require a major reduction of their size down to micro-scale level. Therefore we are now investigating alternative methods for fabrication of thin-layered ME composites. Several methods are being investigated 1) the stoichiometrically controlled deposition of magnetostrictive material by pulsed electroplating over seeded piezoelectric thin films: 2) nano-scale sized particles of magnetostrictive material mixed with polyvinylidene fluoride, a piezoelectric polymer, holt-moulded into thin films in the presense of a DC magnetic field. The expected outcome of this research is the production of arrays of micro-scale ME composites as a wireless power source and remote communication unit for MEMS.