Topology-like dynamical behavior of magnetization reversal in exchange-bias systems |
| |
| Authors: | Su Yuan-Chang Zhang Li-Juan Yang Xin Pan Jing Hu Jing-Guo |
| |
| Affiliation: | [1]College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China [2]School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China |
| |
| Abstract: | In an exchange-bias system, the barriers with intrinsic potential energy may be asymmetric due to unidirectional anisotropy. Based on the Stoner-Wohlfarth model, we show that the asymmetric barriers may lead to four kinds of dynamical process underlying the hysteresis-loop measurement. These kinds of dynamical processes are different in a topology-like property, which can be controlled by the orientation of the external field. In our study, a new analysis approach has been proposed to reveal the dynamical behaviors of magnetization reversal. With this approach, coercivity, exchange-bias field, and asymmetry of hysteresis loops can be quantitatively obtained. |
| |
| Keywords: | exchange-bias system intrinsic energy potential magnetization reversal |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
