Giant magnetoelectric effect in mechanically mediated composite structure of TbFe2–Pb(Zr,Ti)O3–TbFe2 with two nonmagnetic flakes

Magnetoelectric (ME) effect has been studied in a composite structure made up of TbFe2–Pb(Zr,Ti)O3 (PZT)–TbFe2 with two nonmagnetic flakes. The working principal has been analyzed. The significant characteristic is that the ME coupling is achieved by end bonding instead of interface bonding. The ME voltage coefficient depends strongly on the piezomagnetic coupling. The ME voltage coefficient and resonance frequencies for this composites are influenced by structural parameters. The giant ME coefficient as high as 15.2 V cm−1 Oe−1 makes these structures possible for applications in sensors, actuators and transducers.