Influence of nanocrystallization on the evolution of domain patterns and the magnetoimpedance effect in amorphous Fe73.5Cu1Nb3Si13.5B9 ribbons
文献类型：期刊论文
| 作者 | Guo, HQ ; Kronmuller, H ; Dragon, T ; Cheng, ZH ; Shen, BG |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2001 |
| 卷号 | 89期号:1页码:514 |
| 关键词 | SOFT FERROMAGNETIC WIRES GIANT MAGNETO-IMPEDANCE GRAIN-STRUCTURE FIELD ALLOYS FE73.5CUNB3SI13.5B9 |
| ISSN号 | 0021-8979 |
| 通讯作者 | Guo, HQ: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The evolution of the magnetic domain patterns and the giant magnetoimpedance (MI) effect in the Fe73.5Cu1Nb3Si13.5B9 amorphous ribbons are studied as a function of the annealing time t(a) at 550 degreesC. It is shown that by annealing at 550 degreesC for t(a) from 1 to 150 h, very fine nanocrystalline bcc-FeSi grains are homogeneously formed in the amorphous matrix. Although with increasing t(a) the grain size remains very fine (less than or equal to 11 nm), the coercivity H-c increases rapidly from 0.0014 Oe for t(a) = 3 h to 1.67 Oe for t(a) = 150 h. For the nanocrystalline ribbons with t(a) = 3 h, the domain structure is characterized by a few broad longitudinal together with some broad transverse domain patterns, connected to the minimum coercitive field. With increasing annealing time t(a)less than or equal to 10 h, only transverse domain patterns are observed and the transverse domain width gradually becomes narrow. Considering the different magnetic softness, domain structure, and magnetization process, various types of the MI effect are observed in these nanocryastalline ribbons. A maximum value for the MI ratio DeltaZ/Z = [Z(H)-Z(H-max)]/Z(H-max), of about 400%, and a maximum sensitivity of the MI ratio, of about 170% Oe-1, are obtained in the nanocrystalline samples annealed at 550 degreesC for 3 and 10 h, respectively. These maximum MI effects are related to the optimum combination of soft properties with the transverse domain patterns. It is revealed that the magnetic softness together with the domain width of a transverse domain pattern are the key parameters to realize a large MI ratio. (C) 2001 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39859]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Guo, HQ,Kronmuller, H,Dragon, T,et al. Influence of nanocrystallization on the evolution of domain patterns and the magnetoimpedance effect in amorphous Fe73.5Cu1Nb3Si13.5B9 ribbons[J]. JOURNAL OF APPLIED PHYSICS,2001,89(1):514. |
| APA | Guo, HQ,Kronmuller, H,Dragon, T,Cheng, ZH,&Shen, BG.(2001).Influence of nanocrystallization on the evolution of domain patterns and the magnetoimpedance effect in amorphous Fe73.5Cu1Nb3Si13.5B9 ribbons.JOURNAL OF APPLIED PHYSICS,89(1),514. |
| MLA | Guo, HQ,et al."Influence of nanocrystallization on the evolution of domain patterns and the magnetoimpedance effect in amorphous Fe73.5Cu1Nb3Si13.5B9 ribbons".JOURNAL OF APPLIED PHYSICS 89.1(2001):514. |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。