Micromagnetic simulation of CoFe magnetic nanorings:switching behavior in external magnetic field

摘要：

　　The magnetization reversal processes of magnetic nanorings (Co50Fe50) with different geometric shapes are investigated.In addition to the expected onion and vortex magnetization states,other metastable states are observed in the magnetization processes.We anatomize the formation and transition of magnetic states,and the propagation and annihilation of domain walls in the reversal process through the dynamic picture.Phase diagrams for the magnetization switching behavior depending on the geometric parameters are presented.The simulation shows that the vortex state is stabilized in thick and narrow rings.The switching field from vortex to onion states turns out to increase with thickness and decrease with width and diameter.

关键词： magnetic nanorings domain wall vortex state

作者: Zhengang Guo Liqing Pan Hongmei Qiu M.Yasir Rafique Shuai Zeng

作者单位: Department of Physics, University of Science and Technology Beijing, Beijing 100083, China Department of Physics, University of Science and Technology Beijing, Beijing 100083, China ;College

会议类型: 国际会议

会议名称: 2nd International Conference on Polymer Composities and Polymer Testing (2013第二届高分子复合材料与高分子测试国际会议暨先进工业技术与方案国际会议)(ISPCPT2013)

会议地点: 太原

会议语种:英文

页码: 374-378

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）