High-frequency giant magneto-reactance effect in a composite wire LC-resonator  

作　　者：CHENG JinKe PAN HaiLin YUAN WangZhi ZHAO ZhenJie RUAN JianZhong YANG XieLong 

机构地区：[1]Department of Physics, East China Normal University, Shanghai 200062, China [2]College of Chemical Engineering, Guizhou University, Guiyang 550003, China

出　　处：《Chinese Science Bulletin》2008年第8期1128-1132,共5页

基　　金：the National Natural Science Foundation of China (Grant No. 20575022);the Emphasis Project of Shanghai Nanotechnology Promotion Center, China (Grant No. 0652nm036);the Opening Foundation of the Key Laboratory for Magnetism and Magnetic Material of the Education Ministry of China, Lanzhou University (Grant No. LZ013)

摘　　要：The BeCu/Insulator/CoP composite wires were prepared by electroless–deposition on insulated BeCu wire. The composite wire constructs a serial LC resonant element by itself. Due to the LC resonance, very large high-frequency magneto-reactance effect is observed at near the LC resonance frequency, and the maximal magneto-reactance ratio for the composite wire with length of 5 cm is 1.08×107% at 58924500 Hz. The LC resonance frequency decreases with the increasing length of the composite wire. The practical working frequency, at which the very large high-frequency magneto-reactance effect is observed, can be controlled through controlling the LC resonance frequency. The LC resonance mechanism is also analyzed.The BeCu/Insulator/CoP composite wires were prepared by electroless-deposition on insulated BeCu wire. The composite wire constructs a serial LC resonant element by itself. Due to the LC resonance, very large high-frequency magneto-reactance effect is observed at near the LC resonance frequency, and the maximal magneto-reactance ratio for the composite wire with length of 5 cm is 1.08×107% at 58924500 Hz. The LC resonance frequency decreases with the increasing length of the composite wire. The practical working frequency, at which the very large high-frequency magneto-reactance effect is observed, can be controlled through controlling the LC resonance frequency. The LC resonance mechanism is also analyzed.

关 键 词：LC共振 磁共振 磁阻抗 绝缘子 

分 类 号：R44[医药卫生—诊断学]