期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 324, 期 5, 页码 884-888出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2011.10.012
关键词
Magnetic vortex core; Micromagnetic simulation; Permalloy
资金
- Natural Science Foundation of China [10974118]
- Shandong Province Natural Science Foundation [ZR2009GQ010]
- Independent Innovation Foundation of Shandong University (IIFSDU) [2010TS056, 2009TS102]
Switching behaviors of magnetic vortex cores under external magnetic field in submicron circular permalloy disks have been systematically studied by using micromagnetic simulations. Simulation results show that the vortex core is stable in out-of-plane field even when it is located at the edge of the disk. The out-of-plane switching field H-sw is strongly dependent on the thickness of the disk. The core polarity and the vortex chirality can be modulated simultaneously on purpose by using a tilted field far smaller than the out-of-plane switching field H-sw. Moreover, it is found that the core polarities in asymmetric disks do not follow the direction of the z projection of the external saturation field. (C) 2011 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据