Voltage-impulse-induced dual-range nonvolatile magnetization modulation in metglas/PZT heterostructure

Dual-range, nonvolatilemagnetization modulation induced by voltage impulses was investigated in the metglas/lead zirconate titanate(PZT)heterostructure at room temperature. Theheterostructure was obtained by bonding a square metglas ribbon on the top electrode of thePZT substrate, which contained defect dipoles resulting from acceptordoping. ThePZT substrate achieved two strain hysteretic loops with the application of specific voltage impulse excitation modes. Through strain-mediatedmagnetoelectric coupling between the metglas ribbon and thePZT substrate, two strain hysteretic loops led to a dual-range nonvolatilemagnetization modulation in theheterostructure. Reversible and stable voltage-impulse-induced nonvolatile modulation in theferromagnetic resonance field andmagnetic hysteresis characteristics were also realized. This method provides a promising approach in reducing energy consumption inmagnetization modulation and other related devices.

Source: Applied Physics Letters - November 15, 2016 Category: Physics Authors: Xiaoli Tang, Hua Su, Huaiwu Zhang and Nian X. Sun Source Type: research