Large converse magnetoelectric effect in ferromagnetic shape memory alloy Ni_(49)Fe_(18)Ga_(27)Co_6 and Pb(Zr_(0.52)Ti_(0.48))O_3 laminates

摘要

Ferromagnetic shape memory alloy Ni_(49)Fe_(18)Ga_(27)Co_6 was used in a laminated composite with Pb(Zr_(0.52)Ti_(0.48))O_3 for studying the converse magnetoelectric (CME) effect. The CME properties with the frequency of driving electric voltage, bias magnetic field, and dc bias electric voltages were investigated in detail. A large value of α_B of 1.05 G/V at the resonance frequency 89 kHz is observed under a low optimum H_(bias) of 100 Oe. The maximum values of as at 1 kHz can be tuned from 8.7 to 25 mG/V by increasing dc voltage bias from -100 to 100 V, exhibiting a giant tunable range in α_B values. This composite exhibits promising applications in electrically controlled magnetic force devices.