曲折结构钴基非晶薄带巨磁阻抗效应及其仿真分析  

Giant magnetic impedance effect and simulation analysis of meanders Co-based amorphous ribbon

作　　者：杨真 王振宝 柳梦雨 黄永 梁晓光 YANG Zhen;WANG Zhen-bao;LIU Meng-yu;HUANG Yong;LIANG Xiao-guang(College of Electronic and Information Engineering/College of Integrated Circuits,Guangxi Normal University,Guilin 541004,China;Key Laboratory of Integrated Circuits and Microsystems,Guangxi Normal University,Guilin 541004,China;Xidian-Wuhu Research Institute,Wuhu 241000,China;School of Physics Science and Technology,Guangxi Normal University,Guilin 541004,China)

机构地区：[1]广西师范大学电子与信息工程学院/集成电路学院,广西桂林541000 [2]广西师范大学广西高校集成电路与微系统重点实验室,广西桂林541000 [3]西安电子科技大学芜湖研究院,安徽芜湖241000 [4]广西师范大学物理与科学技术学院,广西桂林541000

出　　处：《磁性材料及器件》2023年第3期10-16,共7页Journal of Magnetic Materials and Devices

基　　金：广西科技基地和人才专项基金项目(2020AC19178);广西师范大学博士科研启动项目(DC2100001089)。

摘　　要：建立了曲折结构钴基非晶薄带近横向各向异性场巨磁阻抗效应的理论计算模型,通过Maxwell方程组以及带阻尼项的Landau-Lifshitz进动方程,对其巨磁阻抗效应(GMI)进行理论分析。着重讨论了曲折结构钴基非晶薄带的长度、宽度、线条间距以及工作频率和外加磁场等参数对GMI性能的影响。结果表明,在考虑非晶薄带微型化尺寸以及理想的GMI性能的情况下,曲折结构钴基非晶薄带的长度、宽度和线条间距之间存在一个比较理想的比例。根据理论计算结果,较为理想的结构参数分别为长度8 mm、间距60μm、宽度240μm,在工作频率为20 MHz的情况下,GMI比高达175%,理论计算结果为后续开展微型化薄带传感器的研制以及相关生物传感检测研究提供了一定的理论依据。A theoretical calculation model of giant magneto-impedance effect in the near-lateral anisotropic field of cobalt-based amorphous ribbon meanders is established.The giant magneto-impedance effect(GMI)of ribbon meanders is theoretically analyzed by Maxwell equations and Landau-Lifshitz precession equation with damping term.The effects of length,width,line spacing of cobalt-based amorphous ribbon meanders,working frequency,external magnetic field and other parameters on GMI performance are discussed emphatically.The results show that there is an ideal ratio among the length,width and line spacing of the Co-based amorphous ribbon meanders,considering the miniaturization size and ideal GMI performance of the amorphous ribbon.According to the theoretical calculation results,the ideal structural parameters are length 8 mm,spacing 60μm and width 240μm,respectively.When the working frequency is 20 MHz,the GMI ratio is as high as 175%.The theoretical calculation results provide a certain theoretical basis for the subsequent development of miniaturized ribbon-based sensors and related biosensing applications.

关 键 词：钴基非晶薄带 曲折结构 巨磁阻抗效应 

分 类 号：TN304[电子电信—物理电子学]