Study on Alternating Current Polarization of MPP Magnetoelectric Composite Based on High Performance Metglas/PMNT
In recent years,there has been widespread interest in weak magnetic sensors utilizing high-performance Metglas/PMNT magnetoelectric composite materials.Through extensive research on magnetoelectric composites,it has been discovered that Multi-Push-pull(MPP)magnetoelectric composites offer numerous advantages,such as high magnetoelectric coefficient and low internal noise,thereby demonstrating significant application prospects in weak magnetic field detection.Given that tripartite PMNT monocrystals and Metglas amorphous alloys are commonly used for MPP-structured magnetoelectric composites,this study employs the alternating current polarization(ACP)method to enhance the magnetoelectric(ME)response of MPP-structured ME composites.The paper focuses on utilizing the alternating current polarization method to enhance the performance of PMNT single crystals.Additionally,it thoroughly discusses poling conditions,including temperature,voltage and frequency of MPP structure magnetoelectric composites,aiming to improve the weak magnetic detection ability of magnetoelectric sensors.
PMNTMetglasAlternating current polarizationMagnetoelectric composite materials
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