摘要
研究了多片Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9纳米晶条带的磁滞回线、纵向巨磁阻抗(Longitudinal Driven Giant Magneto-Impedance,LDGMI)效应及阻抗相位角的变化规律.研究发现,样品各向异性场随纳米晶条带片数线性增加,LDGMI曲线的"平台"宽度也线性展宽,这是相邻纳米晶条带的磁偶极相互作用导致的.同时,发现驱动场大小、频率对样品LDGMI曲线的"平台"宽度有调制作用,其肩宽场随驱动场频率的增加而增大以及随驱动场增强而减小.因此,本工作对多磁芯LDGMI器件的研制具有重要参考价值.
In this paper, the hysteresis loops, LDGMI（longitudinal driven giant magnetoimpedance） effect, and impedance phase variations of Fe（73.5）Cu1 Nb3 Si（13.5）B9 nanocrystalline ribbons are investigated. The results show that the anisotropy field and the platform width of the LDGMI curves increase linearly with the number of nanocrystalline ribbons.This stems from the dipole-dipole interactions between the ribbons. Simultaneously, the ＂platform＂ width was modulated by the frequency and intensity of the driven field, the broad field amplified with the frequency of the driven field increasing, and gradually decreased with the intensity of driven field increasing. Hence, the work has important reference value for the development of LDGMI devices with multiple cores.
作者
苏亚攀
潘海林
赵振杰
袁萌平
SU Ya-pan;PAN Hai-lin;ZHAO Zhen-jie;YUAN Meng-ping(School of Physics and Materials Science, East China Normal University,Shanghai 200062,China;State Grid Nanyang Power Supply Company,Nanyang Henan 473000,China)
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第3期129-135,156,共8页
Journal of East China Normal University(Natural Science)
基金
国家自然科学基金(11574084
51572086)
关键词
铁基纳米晶条带
纵向巨磁阻抗效应
磁偶极相互作用
Fe-based nanocrystalline ribbon
longitudinal driven giant magneto impedance effect
dipolar magnetic interaction
