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Enhanced resonant magnetoelectric coupling in frequency-tunable composite multiferroic bimorph structures
Lofland, S. E.
Viehland, Dwight D.
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We report on a giant tunable enhanced resonant magnetoelectric (ME) coupling in multiferroic magnetostrictive/piezoelectric composite bimorph structures. The approach uses a magnetic/electric field assisted stress-reconfigurable resonance to produce frequency tuning of up to 100%. The studies were performed by laser Doppler spectroscopy. We also show that this principle of a continuously tuned resonance might be used to improve sensitivity for ME magnetic sensors. (C) 2011 American Institute of Physics. [doi:10.1063/1.3560055]