Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires
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...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/107085 http://hdl.handle.net/10220/25373 |
| _version_ | 1824454988260179968 |
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| author | Purnama, Indra Kerk, Inn Seng Lim, Gerard Joseph Lew, Wen Siang |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Purnama, Indra Kerk, Inn Seng Lim, Gerard Joseph Lew, Wen Siang |
| author_sort | Purnama, Indra |
| collection | NTU |
| description | 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. |
| first_indexed | 2025-02-19T03:31:03Z |
| format | Journal Article |
| id | ntu-10356/107085 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:31:03Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1070852023-02-28T19:45:32Z Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires Purnama, Indra Kerk, Inn Seng Lim, Gerard Joseph Lew, Wen Siang School of Physical and Mathematical Sciences DRNTU::Engineering::Materials::Nanostructured materials DRNTU::Science::Physics::Electricity and magnetism 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. Published version 2015-04-13T01:53:06Z 2019-12-06T22:24:24Z 2015-04-13T01:53:06Z 2019-12-06T22:24:24Z 2015 2015 Journal Article 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. 2045-2322 https://hdl.handle.net/10356/107085 http://hdl.handle.net/10220/25373 10.1038/srep08754 25736593 en Scientific reports 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 http://creativecommons.org/licenses/by/4.0/ 6 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials::Nanostructured materials DRNTU::Science::Physics::Electricity and magnetism Purnama, Indra Kerk, Inn Seng Lim, Gerard Joseph Lew, Wen Siang Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| title | Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| title_full | Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| title_fullStr | Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| title_full_unstemmed | Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| title_short | Coupled Néel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| title_sort | coupled neel domain wall motion in sandwiched perpendicular magnetic anisotropy nanowires |
| topic | DRNTU::Engineering::Materials::Nanostructured materials DRNTU::Science::Physics::Electricity and magnetism |
| url | https://hdl.handle.net/10356/107085 http://hdl.handle.net/10220/25373 |
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