Formation and evolution of the transverse anisotropy with nanocrystallization in amorphous Fe73.5CuNb3Si13.5B9 ribbons

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	Formation and evolution of the transverse anisotropy with nanocrystallization in amorphous Fe73.5CuNb3Si13.5B9 ribbons
	Guo, HQ ; Kronmuller, H ; Dragon, T ; Cheng, ZH ; Shen, BG
刊名	PHYSICAL REVIEW B
	2000
卷号	62 期号:9 页码:5760
关键词	MAGNETIZATION PROCESSES GRAIN-STRUCTURE FERROMAGNETS DEPENDENCE ALLOYS
ISSN号	0163-1829
通讯作者	Guo, HQ: Chinese Acad Sci, State Key Lab Magnetism, Inst Phys, Beijing 100080, Peoples R China.
中文摘要	The evolution of the magnetic domain patterns has been studied in amorphous Fe73.5CuNb3Si13.5B9 ribbons by suitable "long duration" thermal treatments. It is shown that by annealing at 550 degrees C for annealing time t(a) from 1 to 150 h. very fine nanocrystalline bcc-FeSi rains 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 0.14 A/m for t(a) = 3 h to 133 A/m 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 coercive field. With increasing annealing time t(a) greater than or equal to 10 h, only transverse domain patterns are observed and the transverse domain width gradually becomes narrow. By applying an external magnetic field. the magnetization processes indicate that the easy magnetization may be between the longitudinal and transverse directions for the samples annealed for t(a) = 1, 3, and 10 h, while in the sample of t(a) = 30 h. the easy magnetization in domains is transverse to the ribbon direction. The induced transverse anisotropy of 380 J/m(3) in the sample of t(a) = 30 h is determined from the domain width. The estimated H-c for the coherent rotation process in the sample of t(a) = 30 h is compatible with the experimentally observed value.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/38339]
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. Formation and evolution of the transverse anisotropy with nanocrystallization in amorphous Fe73.5CuNb3Si13.5B9 ribbons[J]. PHYSICAL REVIEW B,2000,62(9):5760.
APA	Guo, HQ,Kronmuller, H,Dragon, T,Cheng, ZH,&Shen, BG.(2000).Formation and evolution of the transverse anisotropy with nanocrystallization in amorphous Fe73.5CuNb3Si13.5B9 ribbons.PHYSICAL REVIEW B,62(9),5760.
MLA	Guo, HQ,et al."Formation and evolution of the transverse anisotropy with nanocrystallization in amorphous Fe73.5CuNb3Si13.5B9 ribbons".PHYSICAL REVIEW B 62.9(2000):5760.