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Helical domain walls in constricted cylindrical NiFe nanowiresPublished in
2012
DOI: 10.1063/1.4758469
Volume: 101
Issue: 15
Reducing the magnetic shape anisotropy of a cylindrical NiFe nanowire allows the formation of two vortices with opposite chirality at the two ends. At relatively low aspect ratio these two vortices are connected via a gradual rotation of the magnetization over a short region, which forms a three-dimensional helical domain wall. Micromagnetic simulations reveal that it is possible to control the number of helical domain walls in the cylindrical nanowire by geometrical constrictions engineering. A technique to create constricted Ni 95Fe 5/Ni 87Fe 13 multilayered nanowires is demonstrated, and magnetic force microscopy imaging was carried out to confirm the prediction of simulated helical domain walls. © 2012 American Institute of Physics.
Publisher Copy Version
Content may be subject to copyright.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publ... ...This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in [Helical domain walls in constricted cylindrical NiFe nanowires. Applied Physics Letters 101, 15 p152406 (2012)] and may be found at https://doi.org/10.1063/1.4758469.
About the journal
| Journal | Applied Physics Letters |
|---|---|
| ISSN | 00036951 |
| Open Access | No |
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