Giant magneto-impedance and low-frequency magneto-resistance effect in NiFeB coated composite wires  

作　　者：YUAN Wangzhi WANG Xinzheng ZHAO Zhenjie RUAN Jianzhong LI Xiaodong YANG Xielong Department of Physics, East China Normal University, Shanghai 200062,China Correspondence should be addressed to Zhao Zhenjie 

出　　处：《Chinese Science Bulletin》2004年第10期1002-1005,共4页

摘　　要：Composite wires of 100 μm insulated CuBewire plated with a layer of NiFeB were produced by elec-troless-deposition, and their magnetic properties were stud-led. The results showed that a good magneto-impedance (MI)effect can be obtained at relatively low frequency. The largestMI ratio (△Z/Z)max obtained is 250% at 500 kHz. Mag-neto-resistance effect was also observed at low frequency,with the (△R/R)max observed to be -8.5% at 540 Hz and 38.7% at 10 kHz. Results are discussed, and the equivalent resistance and inductance as the result of the NiFeB layer are taken into account.Composite wires of 100 μm insulated CuBewire plated with a layer of NiFeB were produced by elec-troless-deposition, and their magnetic properties were stud-ied. The results showed that a good magneto-impedance (MI)effect can be obtained at relatively low frequency. The largestMI ratio (ΔZ/Z)_(max) obtained is 250% at 500 kHz. Mag-neto-resistance effect was also observed at low frequency,with the (ΔR/R)_(max) observed to be -8.5% at 540 Hz and38.7% at 10 kHz. Results are discussed, and the equivalentresistance and inductance as the result of the NiFeB layer aretaken into account.

关 键 词：巨磁阻抗 无电沉积 涡流电流损耗 合成导线 低频电机电阻 

分 类 号：TM352[电气工程—电机]