| 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 | |
| Corresponding Author | Dai, Y. Y.(yydai11b@imr.ac.cn) |
| 2019-08-01 | |
| Source Publication | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
 |
| ISSN | 0304-8853 |
| Volume | 483Pages:70-75 |
| Abstract | 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. |
| Keyword | fractal magnetization reversal micromagnetic simulations nanostructure |
| Funding Organization | China Scholarship Council ; Key Research Program of Chinese Academy of Sciences ; Ministry of Science and Technology China ; National Natural Science Foundation of China |
| DOI | 10.1016/j.jmmm.2019.03.096 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Condensed Matter |
| WOS ID | WOS:000471858100012 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/134069 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Dai, Y. Y. |
| Affiliation | 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 |
| Recommended Citation 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. |
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