Deep sub-nanosecond reversal of vortex cores confined in a spin-wave potential well

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	Deep sub-nanosecond reversal of vortex cores confined in a spin-wave potential well
	Dong, Xinwei ; Wang, Zhenyu ; Wang, Ruifang ; Dong XW(董新伟) ; Wang RF(王瑞方)
刊名	http://dx.doi.org/10.1063/1.4868725
	2014-03-17
关键词	PERMALLOY DOTS
英文摘要	National Natural Science Foundation of China [11174238, 10974163, 11204255]; Specialized Research Fund for the Doctoral Program of Higher Education in China [20090121120029]; A spin-wave potential well is created in a permalloy nanodisk by setting up a cylindrical cavity in the center of the sample. We then apply a single-harmonic external magnetic field perpendicular to the disk plane to switch the vortex polarity of the sample. Our micromagnetic numerical studies establish that the effective spin-wave confinement by the potential well leads to much stronger magnetization oscillation in the sample. Therefore, the vortex core can be reversed well below 200 ps and over a wide range of field frequency. Our findings present an additional efficient means for ultrafast switching of magnetic vortices. (C) 2014 AIP Publishing LLC.
语种	英语
出版者	AMER INST PHYSICS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92049]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Dong, Xinwei,Wang, Zhenyu,Wang, Ruifang,et al. Deep sub-nanosecond reversal of vortex cores confined in a spin-wave potential well[J]. http://dx.doi.org/10.1063/1.4868725,2014.
APA	Dong, Xinwei,Wang, Zhenyu,Wang, Ruifang,董新伟,&王瑞方.(2014).Deep sub-nanosecond reversal of vortex cores confined in a spin-wave potential well.http://dx.doi.org/10.1063/1.4868725.
MLA	Dong, Xinwei,et al."Deep sub-nanosecond reversal of vortex cores confined in a spin-wave potential well".http://dx.doi.org/10.1063/1.4868725 (2014).