Flower-like dynamics of coupled Skyrmions with dual resonant modes by a single-frequency microwave magnetic field

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	Flower-like dynamics of coupled Skyrmions with dual resonant modes by a single-frequency microwave magnetic field
	Y. Y. Dai; H. Wang; T. Yang; W. J. Ren; Z. D. Zhang
	2014
发表期刊	Scientific Reports
ISSN	2045-2322
卷号	4
摘要	Resonant excitations of confined systems have aroused much attention because of their potential application in future microwave devices and spintronics. Under resonant excitations, the motion of topo-logical objects exhibits circular, elliptical or even stadium-like dynamics. However, more complex non-linear resonant excitations of topological objects in confined systems have seldom been reported and the associated physical mechanism remains unclear. Here, we present an observation of flower-like resonant excitations for coupled skyrmions in Co/Ru/Co nanodisks activated by a single-frequency microwave magnetic field by means of numerical simulation. We find that flower-like dynamics of coupled skyrmions is always accompanied by an excitation of an eigenfrequency near 1.15 GHz, which is strongly associated with the large non-local deformation of the topological density distribution of coupled skyrmions. These results distinguish a skyrmion from other topological objects in dynamics and will be instrumental to the manipulation of skyrmions for applications.
部门归属	[dai, yingying ; wang, han ; yang, teng ; ren, weijun ; zhang, zhidong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; zhang, zd (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; yangteng@imr.ac.cn ; zdzhang@imr.ac.cn
关键词	Chiral Magnet Oscillations Lattice
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73209
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Y. Dai,H. Wang,T. Yang,et al. Flower-like dynamics of coupled Skyrmions with dual resonant modes by a single-frequency microwave magnetic field[J]. Scientific Reports,2014,4.
APA	Y. Y. Dai,H. Wang,T. Yang,W. J. Ren,&Z. D. Zhang.(2014).Flower-like dynamics of coupled Skyrmions with dual resonant modes by a single-frequency microwave magnetic field.Scientific Reports,4.
MLA	Y. Y. Dai,et al."Flower-like dynamics of coupled Skyrmions with dual resonant modes by a single-frequency microwave magnetic field".Scientific Reports 4(2014).