Enhancement of resonant and non-resonant magnetoelectric coupling in multiferroic laminates with anisotropic piezoelectric properties

Giant transverse magnetoelectric voltage coefficients vertical bar(alpha) over tilde (E)vertical bar = 751 and 305 V/cmOe at two electromechanical antiresonance frequencies are found in the symmetric metglas/[011]-oriented 0.7Pb(Mg1/3Nb2/3)O-3-0.3PbTiO(3) crystal/metglas laminate. Unique torsional and diagonal vibration modes are identified to be responsible for those giant vertical bar(alpha) over tilde (E)vertical bar values. Moreover, (alpha) over tilde (E) is found to be anisotropic depending on the in-plane magnetic field directions, making the piezoelectrics with anisotropic planar piezoelectricity potentially useful base materials for multi-frequency, phase-sensitive magnetoelectric devices. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4792590]