Influence of interfacial bonding on giant magnetoelectric response of multiferroic laminated composites of Tb1-xDyxFe2 and PbZrxTi1-xO3

The influence of interfacial bonding on the magnetoelectric response in multiferroic laminated composites of Tb1-xDyxFe2 (Terfenol-D) and lead-zirconate-titanate (PZT) by using the recent Green's function technique was studied. Numerical results demonstrate that a giant magnetoelectric response is produced in the simple sandwiched composites of thick Terfenol-D layers and thin PZT layers. The interfacial epoxy binders used for bonding PZT and Terfenol-D together are very critical to the giant magnetoelectric response of the composites. A thicker interfacial epoxy film and, in particular, a sliding interfacial bonding by a very flexible epoxy would result in a significant drop in the magnetoelectric response. (C) 2003 American Institute of Physics.