Sun, Z. Z. and Schliemann, J. (2010) Fast Domain Wall Propagation under an Optimal Field Pulse in Magnetic Nanowires. PHYSICAL REVIEW LETTERS, 104 (3): 037206. ISSN 0031-9007,
Full text not available from this repository.Abstract
We investigate field-driven domain wall (DW) propagation in magnetic nanowires in the framework of the Landau-Lifshitz-Gilbert equation. We propose a new strategy to speed up the DW motion in a uniaxial magnetic nanowire by using an optimal space-dependent field pulse synchronized with the DW propagation. Depending on the damping parameter, the DW velocity can be increased by about 2 orders of magnitude compared to the standard case of a static uniform field. Moreover, under the optimal field pulse, the change in total magnetic energy in the nanowire is proportional to the DW velocity, implying that rapid energy release is essential for fast DW propagation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | DYNAMICS; MOTION; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Aug 2020 08:11 |
| Last Modified: | 10 Aug 2020 08:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/25291 |
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