Giant magnetoimpedance effect in Fe-Zr-Nb-Cu-B nanocrystalline ribbons
来源期刊：Rare Metals2004年第3期
论文作者：AN Kang~()), HU Jifan~()), QIN Hongwei~()), HAN Tao~()), WANG Yizhong~()), YU Xiaojun~()), and LI Bo~()) ) School of Physics and Microelectronics, State Key Laboratory for Crystal Materials, Shandong University, Jinan , China ) Institute of Physics, Chinese Academy of Sciences, Beijing , China ) Department of Functional Materials, Central Iron & Steel Research Institute, Beijing , China
文章页码：235 - 240
摘 要：<正> The giant magnetoimpedance effect of the nanocrystalline ribbon Fe84Zr2.08Nb1.92CU1B11 （atom fraction in %） was investigated. There is an optimum annealing temperature （TA≈998 K） for obtaining the largest GMI （giant magnetoimpedance） effect in the ribbon Fe84Zr2.08Nb1.92Cu1B11. The ribbon with longer ribbon length has stronger GMI effect, which may be connected with the demagnetization effect of samples. The frequency fmax, where the maximum magnetoimpedance GMI（Z）max=[（Z（H）-Z（0））/Z（0）]max Occurs, is near the intersecting frequency fi of the curves of GMI（R）, GMI（X）, and GMI（Z） versus frequency. The magnetoreactance GMI（X） decreases monotonically with increasing frequency, which may be due to the decrease of permeability. In contrast, with the AC （alternating current） frequency increasing, the magnetoresistance GMI（R） increases at first, undergoes a peak, and under then drops. The increase of the magnetoresistance may result from the enhancement of the skin effect w
AN Kang~(1)), HU Jifan~(1)), QIN Hongwei~(1)), HAN Tao~(1)), WANG Yizhong~(2)), YU Xiaojun~(3)), and LI Bo~(3)) 1) School of Physics and Microelectronics, State Key Laboratory for Crystal Materials, Shandong University, Jinan 250100, China 2) Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China 3) Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China
摘 要：<正> The giant magnetoimpedance effect of the nanocrystalline ribbon Fe84Zr2.08Nb1.92CU1B11 （atom fraction in %） was investigated. There is an optimum annealing temperature （TA≈998 K） for obtaining the largest GMI （giant magnetoimpedance） effect in the ribbon Fe84Zr2.08Nb1.92Cu1B11. The ribbon with longer ribbon length has stronger GMI effect, which may be connected with the demagnetization effect of samples. The frequency fmax, where the maximum magnetoimpedance GMI（Z）max=[（Z（H）-Z（0））/Z（0）]max Occurs, is near the intersecting frequency fi of the curves of GMI（R）, GMI（X）, and GMI（Z） versus frequency. The magnetoreactance GMI（X） decreases monotonically with increasing frequency, which may be due to the decrease of permeability. In contrast, with the AC （alternating current） frequency increasing, the magnetoresistance GMI（R） increases at first, undergoes a peak, and under then drops. The increase of the magnetoresistance may result from the enhancement of the skin effect w
关键词：
