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Title: Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires
Authors: Purnama, Indra
Kerk, Inn Seng
Lim, Gerard Joseph
Lew, Wen Siang
Keywords: DRNTU::Engineering::Materials::Nanostructured materials
DRNTU::Science::Physics::Electricity and magnetism
Issue Date: 2015
Source: Purnama, I., Kerk, I. S., Lim, G. J., & Lew, W. S. (2015). Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires. Scientific reports, 5.
Series/Report no.: Scientific reports
Abstract: The operating performance of a domain wall-based magnetic device relies on the controlled motion of the domain walls within the ferromagnetic nanowires. Here, we report on the dynamics of coupled Néel domain wall in perpendicular magnetic anisotropy (PMA) nanowires via micromagnetic simulations. The coupled Néel domain wall is obtained in a sandwich structure, where two PMA nanowires that are separated by an insulating layer are stacked vertically. Under the application of high current density, we found that the Walker breakdown phenomenon is suppressed in the sandwich structure. Consequently, the coupled Néel domain wall of the sandwich structure is able to move faster as compared to individual domain walls in a single PMA nanowire.
ISSN: 2045-2322
DOI: 10.1038/srep08754
Schools: School of Physical and Mathematical Sciences 
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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