Direct observation of magnetization reversal of hot-deformed Nd-Fe-B magnet

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	Direct observation of magnetization reversal of hot-deformed Nd-Fe-B magnet
	Zhu, Xiaoyun; Tang, Xu; Pei, Ke; Tian, Yue; Liu, Jinjun; Xia, Weixing; Zhang, Jian; Liu, J. Ping; Chen, Renjie; Yan, Aru
刊名	AIP ADVANCES
	2018
卷号	8 期号:1
关键词	Coercivity Diffusion Alloy Microstructure
英文摘要	The dynamic magnetic domain structure in magnetization and demagnetization process of hot-deformed and NdCu-diffused Nd2Fe14B magnets were in-situ observed by Lorentz transmission electron microscopy (LTEM). The demagnetization process of hot-deformed sample is dominated by domain-wall pinning, while that of NdCu-diffused sample is mainly the magnetization reversal of single grains or grain aggregations. This firstly observed result gives an explicit evidence to understand the coercivity mechanism of magnetically segregated magnet. The effect of magnetic field of TEM on decrease in domain wall energy was theoretically analyzed, which helps to understand the in-situ observation process of magnetic materials. (c) 2018 Author(s).
学科主题	Materials Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/16923]
专题	2018专题
推荐引用方式 GB/T 7714	Zhu, Xiaoyun,Tang, Xu,Pei, Ke,et al. Direct observation of magnetization reversal of hot-deformed Nd-Fe-B magnet[J]. AIP ADVANCES,2018,8(1).
APA	Zhu, Xiaoyun.,Tang, Xu.,Pei, Ke.,Tian, Yue.,Liu, Jinjun.,...&Yan, Aru.(2018).Direct observation of magnetization reversal of hot-deformed Nd-Fe-B magnet.AIP ADVANCES,8(1).
MLA	Zhu, Xiaoyun,et al."Direct observation of magnetization reversal of hot-deformed Nd-Fe-B magnet".AIP ADVANCES 8.1(2018).