Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry
A systematic series of micromagnetic simulations on periodic cross-tie/vortex wall structures in an ideal soft film at various widths, thicknesses, and period lengths is performed. For each width and thickness a natural period length is found which has minimal energy density for walls of this type....
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/908692 |
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| _version_ | 1850167462352388096 |
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| author | Michael J. Donahue |
| author_facet | Michael J. Donahue |
| author_sort | Michael J. Donahue |
| collection | DOAJ |
| description | A systematic series of micromagnetic simulations on periodic cross-tie/vortex wall structures in an ideal soft film at various widths, thicknesses, and period lengths is performed. For each width and thickness a natural period length is found which has minimal energy density for walls of this type. For each width, a critical thickness is determined below which the natural period length is infinite; for films thinner than this, the pure Néel wall has lower energy than any cross-tie/vortex wall. Details of the origin of the energy reduction in cross-tie/vortex walls as compared to Néel walls are also examined, and canting inside cross-tie and vortex structures in films thicker than 1 ℓex is explained. |
| format | Article |
| id | doaj-art-d7c07d58820149f89e0e66a5e1fafa27 |
| institution | OA Journals |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-d7c07d58820149f89e0e66a5e1fafa272025-08-20T02:21:11ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242012-01-01201210.1155/2012/908692908692Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall GeometryMichael J. Donahue0Applied and Computational Mathematics Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8910, USAA systematic series of micromagnetic simulations on periodic cross-tie/vortex wall structures in an ideal soft film at various widths, thicknesses, and period lengths is performed. For each width and thickness a natural period length is found which has minimal energy density for walls of this type. For each width, a critical thickness is determined below which the natural period length is infinite; for films thinner than this, the pure Néel wall has lower energy than any cross-tie/vortex wall. Details of the origin of the energy reduction in cross-tie/vortex walls as compared to Néel walls are also examined, and canting inside cross-tie and vortex structures in films thicker than 1 ℓex is explained.http://dx.doi.org/10.1155/2012/908692 |
| spellingShingle | Michael J. Donahue Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry Advances in Condensed Matter Physics |
| title | Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry |
| title_full | Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry |
| title_fullStr | Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry |
| title_full_unstemmed | Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry |
| title_short | Micromagnetic Investigation of Periodic Cross-Tie/Vortex Wall Geometry |
| title_sort | micromagnetic investigation of periodic cross tie vortex wall geometry |
| url | http://dx.doi.org/10.1155/2012/908692 |
| work_keys_str_mv | AT michaeljdonahue micromagneticinvestigationofperiodiccrosstievortexwallgeometry |