Influence of bias electric field on magnetoelectric interactions in ferromagnetic-piezoelectric layered structures

Fetisov, Y. K.; Fetisov, L. Y.; Srinivasan, G.
March 2009
Applied Physics Letters;3/30/2009, Vol. 94 Issue 13, p132507
Academic Journal
The nature of magnetoelectric (ME) interactions has been investigated under a dc electric field E in Ni-lead zirconante titanate bilayer for bending and acoustic modes. Both the ME voltage and the resonance frequencies are sensitively dependent on E and are attributed to variations in the permittivity and piezoelectric coefficient. A 40% increase in the ME voltage and 12% increase in the resonance frequency in comparison to zero bias were observed for bending modes. A similar behavior was observed for ME coupling at acoustic modes. The results are of interest for enhancing the sensitivity of magnetic field sensors based on ME composites.


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