NiFe/Cu复合材料的巨磁阻抗效应研究

摘要

Giant Magnetic Impedance (GMI) of NiFe/Cu Composite Material disposed by single pulse electrod eposition technology was studied. The results show that the GMI reach maximum when the ferrous sulfate content in plating solution was 4 g/L. On the other hand, the GMI value of sample was measured which change with the drive current frequency / from 50 kHz to 2 MHz in order to discuss the relationship between GMI and drive current frequency, the results show that the GMI of sample reach maximum value 190% when the / equal to 100 kHz.%采用单脉冲电沉积技术制备NiFe/Cu复合材料,对制备材料的巨磁阻抗进行了研究.结果表明,镀液中硫酸亚铁体积质量为4 g/L时,材料的巨磁阻抗具有最大值.研究了材料巨磁阻抗与驱动电流频率f的关系,测量了驱动电流频率在50 kHz～2 MHz内变化时样品的巨磁阻抗值,结果显示驱动电流频率f=100 kHz时,样品的GMI效应最大,其值为190％.