Direct observation of dynamical magnetization reversal process governed by shape anisotropy in single NiFe2O4 nanowire

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Direct observation of dynamical magnetization reversal process governed by shape anisotropy in single NiFe2O4 nanowire
	Fu, Jiecai; Peng, Yong; Zhang, Xixiang; Xia, Weixing; Hu, Yang; Zhu, Liu; Li, Hongli; Zhu, Shimeng; Zhang, Junli
刊名	NANOSCALE
	2018
卷号	10 期号:21 页码:10123-10129
关键词	Electron Holography Nanoparticles Configurations Mechanism
英文摘要	Discovering how the magnetization reversal process is governed by the magnetic anisotropy in magnetic nanomaterials is essential and significant to understand the magnetic behaviour of micro-magnetics and to facilitate the design of magnetic nanostructures for diverse technological applications. In this study, we present a direct observation of a dynamical magnetization reversal process in single NiFe2O4 nanowire, thus clearly revealing the domination of shape anisotropy on its magnetic behaviour. Individual nanoparticles on the NiFe2O4 nanowire appear as single domain states in the remanence state, which is maintained until the magnetic field reaches 200 Oe. The magnetization reversal mechanism of the nanowire is observed to be a curling rotation mode. These observations are further verified by micromagnetic computational simulations. Our findings show that the modulation of shape anisotropy is an efficient way to tune the magnetic behaviours of cubic spinel nano-ferrites.
学科主题	Crystallography
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/174433/17415]
专题	2018专题
推荐引用方式 GB/T 7714	Fu, Jiecai,Peng, Yong,Zhang, Xixiang,et al. Direct observation of dynamical magnetization reversal process governed by shape anisotropy in single NiFe2O4 nanowire[J]. NANOSCALE,2018,10(21):10123-10129.
APA	Fu, Jiecai.,Peng, Yong.,Zhang, Xixiang.,Xia, Weixing.,Hu, Yang.,...&Zhang, Junli.(2018).Direct observation of dynamical magnetization reversal process governed by shape anisotropy in single NiFe2O4 nanowire.NANOSCALE,10(21),10123-10129.
MLA	Fu, Jiecai,et al."Direct observation of dynamical magnetization reversal process governed by shape anisotropy in single NiFe2O4 nanowire".NANOSCALE 10.21(2018):10123-10129.