High frequency behaviours and Mssbauer study of field annealed FeCuNbSiB alloy ribbons  

作　　者：马小明 李志伟 位建强 王涛 李发伸 

机构地区：[1]Institute of Applied Magnetics,Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education,Lanzhou University

出　　处：《Chinese Physics B》2010年第9期570-575,共6页中国物理B（英文版）

基　　金：supported by National Natural Science Foundation of China (Grant No.10774061)

摘　　要：This paper investigates the high frequency behaviours and magnetic anisotropy of rapidly solidified FINEMET （Fe73.5Si13.sBgNb3Cul） alloy ribbons annealed in an applied magnetic field. It finds that the ribbons annealed with the applied magnetic field show much higher resonance frequencies and have even higher permeability at higher frequencies than the samples annealed without the magnetic field and the non-annealed ribbons. MSssbauer spectroscopy had been employed to study the spatial distribution of the magnetic moments of five selected FINEMET alloy ribbons in different heat-treated conditions. The results show that an easy plane has been established after annealling in the magnetic field, while for the other ribbons this effect is not significant. Hence, the relationship between magnetic field annealing and high frequency property has been bridged by the bianisotropic theory.This paper investigates the high frequency behaviours and magnetic anisotropy of rapidly solidified FINEMET （Fe73.5Si13.sBgNb3Cul） alloy ribbons annealed in an applied magnetic field. It finds that the ribbons annealed with the applied magnetic field show much higher resonance frequencies and have even higher permeability at higher frequencies than the samples annealed without the magnetic field and the non-annealed ribbons. MSssbauer spectroscopy had been employed to study the spatial distribution of the magnetic moments of five selected FINEMET alloy ribbons in different heat-treated conditions. The results show that an easy plane has been established after annealling in the magnetic field, while for the other ribbons this effect is not significant. Hence, the relationship between magnetic field annealing and high frequency property has been bridged by the bianisotropic theory.

关 键 词：FINEMET field annealing MSssbauer spectrum high frequency 

分 类 号：O481.4[理学—固体物理]