Controlled magnetization reversal and magnetic spectra of artificial Sierpinski-fractal structure

doi:10.1016/j.jmmm.2019.03.096

CORC > 金属研究所 > 中国科学院金属研究所

	Controlled magnetization reversal and magnetic spectra of artificial Sierpinski-fractal structure
	Dai, Y. Y.1; Wang, H.1,2; Yang, T.1; Zhang, Z. D.1
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2019-08-01
卷号	483 页码:70-75
关键词	fractal magnetization reversal micromagnetic simulations nanostructure
ISSN号	0304-8853
DOI	10.1016/j.jmmm.2019.03.096
通讯作者	Dai, Y. Y.(yydai11b@imr.ac.cn)
英文摘要	We show by micromagnetic simulations that the magnetization reversal and magnetic spectra can be effectively controlled by patterning a ferromagnet into novel Sierpinski-fractal structure. As the number of iterations increases from 1 to 6, the knees in the hysteresis loop rise from 1 to 27 and the way of magnetization reversal changes. Moreover, the influence of Sierpinski-fractal structure on magnetic spectra increases as the iteration number increases, especially for the fifth- and sixth-iteration films, all the resonant peaks in the magnetic spectra are caused by the fractal structure. A blueshift of the resonance peaks occurs as the number of iterations increases, which is due to the increasing number of corners associated with fractal structures. Temperature has little influence on the hysteresis loop and the magnetization reversal mode for the third-iteration sample, while results in the decrease of the coercivity for the sixth-iteration one. addition, the remanence states of the Sierpinski-fractal structures have a character of self-similarity, typical for fractal structures.
资助项目	China Scholarship Council ; Key Research Program of Chinese Academy of Sciences[KGZD-EW-M05-3] ; Ministry of Science and Technology China ; National Natural Science Foundation of China[51331006] ; National Natural Science Foundation of China[51590883] ; National Natural Science Foundation of China[51701217]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000471858100012
资助机构	China Scholarship Council ; Key Research Program of Chinese Academy of Sciences ; Ministry of Science and Technology China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134066]
专题	金属研究所_中国科学院金属研究所
通讯作者	Dai, Y. Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore
推荐引用方式 GB/T 7714	Dai, Y. Y.,Wang, H.,Yang, T.,et al. Controlled magnetization reversal and magnetic spectra of artificial Sierpinski-fractal structure[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2019,483:70-75.
APA	Dai, Y. Y.,Wang, H.,Yang, T.,&Zhang, Z. D..(2019).Controlled magnetization reversal and magnetic spectra of artificial Sierpinski-fractal structure.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,483,70-75.
MLA	Dai, Y. Y.,et al."Controlled magnetization reversal and magnetic spectra of artificial Sierpinski-fractal structure".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 483(2019):70-75.