Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1810391 | Physica B: Condensed Matter | 2012 | 4 Pages |
Abstract
By micromagnetic simulation, we show that faster propagation of 360° domain wall in magnetic nanostrips under spin-polarized currents in conjunction with out-of-plane magnetic fields can be obtained. Without magnetic field, the annihilation process of 360° domain wall is irreversible when spin-polarized current velocity above about 220 m/s. The annihilation of 360° domain wall can be suppressed by an out-of -plane magnetic field and domain wall speed can exceed 1500 m/s at large current density. This is different from the case exhibited in 180° domain wall. The underlying mechanism is investigated by changing the state of 360° domain wall and the direction of out-of-plane field.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Qiyuan Zhu, Congpu Mu, Haiyan Xia, Weiwei Wang, Jianbo Wang, Qingfang Liu,