FINEMET/石墨烯复合带畴壁位移过渡态及巨磁阻抗效应的观测

Observation of the transition state of domain wall displacement and GMI effect of FINEMET/graphene composite ribbons.

作者信息

Zou Jintang, Chen Yijun, Li Xin, Song Yenan, Zhao Zhenjie

机构信息

Engineering Research Center for Nanophotonics and Advanced Instrument, Minstry of Education, School of Physics and Electronic Science, East China Normal University Shanghai 200241 China

出版信息

RSC Adv. 2019 Nov 28;9(67):39133-39142. doi: 10.1039/c9ra07642e. eCollection 2019 Nov 27.

DOI:10.1039/c9ra07642e

PMID:35540672

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9076008/

Abstract

In this paper, the morphology, structure, and magnetic properties of FINEMET/graphene composite ribbons are systematically studied by SEM, Raman and static methods (hysteresis loops) and the dynamic method (giant magneto-impedance effect, GMI) respectively. It is revealed that with the increase of the number of graphene layers, the GMI effect of the FINEMET/graphene composite ribbons decreases, and the anisotropy field and the relaxation frequency of domain wall displacement of FINEMET/graphene composite ribbons increases. The result also confirmed that graphene does regulate the magnetic properties of FINEMET ribbon. Therefore, a comprehensive analysis of the influence of graphene on the magnetic properties of FINEMET ribbon is of important guiding significance in industrial applications.

摘要

本文分别通过扫描电子显微镜（SEM）、拉曼光谱以及静态方法（磁滞回线）和动态方法（巨磁阻抗效应，GMI）系统研究了FINEMET/石墨烯复合带材的形貌、结构和磁性能。结果表明，随着石墨烯层数的增加，FINEMET/石墨烯复合带材的GMI效应降低，而FINEMET/石墨烯复合带材的各向异性场和畴壁位移弛豫频率增加。该结果还证实了石墨烯确实调节了FINEMET带材的磁性能。因此，全面分析石墨烯对FINEMET带材磁性能的影响在工业应用中具有重要的指导意义。