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Micromagnetic calculations of 180° surface domain walls
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| Zeitschriftentitel: | Journal of Applied Physics |
|---|---|
| Personen und Körperschaften: | , |
| In: | Journal of Applied Physics, 69, 1991, 11, S. 7740-7751 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
AIP Publishing
|
| Schlagwörter: |
| author_facet |
Scheinfein, M. R. Blue, James L. Scheinfein, M. R. Blue, James L. |
|---|---|
| author |
Scheinfein, M. R. Blue, James L. |
| spellingShingle |
Scheinfein, M. R. Blue, James L. Journal of Applied Physics Micromagnetic calculations of 180° surface domain walls General Physics and Astronomy |
| author_sort |
scheinfein, m. r. |
| spelling |
Scheinfein, M. R. Blue, James L. 0021-8979 1089-7550 AIP Publishing General Physics and Astronomy http://dx.doi.org/10.1063/1.347499 <jats:p>We compare quantitative results from two methods of solving the micromagnetics equations for 180° domain walls. The first method solves the Landau–Lifshitz–Gilbert equation by time integration of the stiff differential equations. The second method uses a relaxation scheme to determine the equilibrium domain wall magnetization configuration. We compare results from these calculations for various damping parameters and discretization mesh densities, and also compare our results with domain wall measurements made using scanning electron microscopy with polarization analysis. We conclude that equilibrium domain wall microstructure is insensitive to the damping parameter used in the time method of solution for domain walls in magnetically soft iron and Permalloy. For large damping parameters, the approach to equilibrium is the same for the time method and the relaxation method. Further, we can obtain metastable equilibrium states with both methods.</jats:p> Micromagnetic calculations of 180° surface domain walls Journal of Applied Physics |
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AIP Publishing, 1991 |
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AIP Publishing, 1991 |
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1991 |
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AIP Publishing |
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Journal of Applied Physics |
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49 |
| title |
Micromagnetic calculations of 180° surface domain walls |
| title_unstemmed |
Micromagnetic calculations of 180° surface domain walls |
| title_full |
Micromagnetic calculations of 180° surface domain walls |
| title_fullStr |
Micromagnetic calculations of 180° surface domain walls |
| title_full_unstemmed |
Micromagnetic calculations of 180° surface domain walls |
| title_short |
Micromagnetic calculations of 180° surface domain walls |
| title_sort |
micromagnetic calculations of 180° surface domain walls |
| topic |
General Physics and Astronomy |
| url |
http://dx.doi.org/10.1063/1.347499 |
| publishDate |
1991 |
| physical |
7740-7751 |
| description |
<jats:p>We compare quantitative results from two methods of solving the micromagnetics equations for 180° domain walls. The first method solves the Landau–Lifshitz–Gilbert equation by time integration of the stiff differential equations. The second method uses a relaxation scheme to determine the equilibrium domain wall magnetization configuration. We compare results from these calculations for various damping parameters and discretization mesh densities, and also compare our results with domain wall measurements made using scanning electron microscopy with polarization analysis. We conclude that equilibrium domain wall microstructure is insensitive to the damping parameter used in the time method of solution for domain walls in magnetically soft iron and Permalloy. For large damping parameters, the approach to equilibrium is the same for the time method and the relaxation method. Further, we can obtain metastable equilibrium states with both methods.</jats:p> |
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| author | Scheinfein, M. R., Blue, James L. |
| author_facet | Scheinfein, M. R., Blue, James L., Scheinfein, M. R., Blue, James L. |
| author_sort | scheinfein, m. r. |
| container_issue | 11 |
| container_start_page | 7740 |
| container_title | Journal of Applied Physics |
| container_volume | 69 |
| description | <jats:p>We compare quantitative results from two methods of solving the micromagnetics equations for 180° domain walls. The first method solves the Landau–Lifshitz–Gilbert equation by time integration of the stiff differential equations. The second method uses a relaxation scheme to determine the equilibrium domain wall magnetization configuration. We compare results from these calculations for various damping parameters and discretization mesh densities, and also compare our results with domain wall measurements made using scanning electron microscopy with polarization analysis. We conclude that equilibrium domain wall microstructure is insensitive to the damping parameter used in the time method of solution for domain walls in magnetically soft iron and Permalloy. For large damping parameters, the approach to equilibrium is the same for the time method and the relaxation method. Further, we can obtain metastable equilibrium states with both methods.</jats:p> |
| doi_str_mv | 10.1063/1.347499 |
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| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA2My8xLjM0NzQ5OQ |
| imprint | AIP Publishing, 1991 |
| imprint_str_mv | AIP Publishing, 1991 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161 |
| issn | 0021-8979, 1089-7550 |
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| language | English |
| last_indexed | 2024-03-01T17:46:37.332Z |
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| physical | 7740-7751 |
| publishDate | 1991 |
| publishDateSort | 1991 |
| publisher | AIP Publishing |
| record_format | ai |
| recordtype | ai |
| series | Journal of Applied Physics |
| source_id | 49 |
| spelling | Scheinfein, M. R. Blue, James L. 0021-8979 1089-7550 AIP Publishing General Physics and Astronomy http://dx.doi.org/10.1063/1.347499 <jats:p>We compare quantitative results from two methods of solving the micromagnetics equations for 180° domain walls. The first method solves the Landau–Lifshitz–Gilbert equation by time integration of the stiff differential equations. The second method uses a relaxation scheme to determine the equilibrium domain wall magnetization configuration. We compare results from these calculations for various damping parameters and discretization mesh densities, and also compare our results with domain wall measurements made using scanning electron microscopy with polarization analysis. We conclude that equilibrium domain wall microstructure is insensitive to the damping parameter used in the time method of solution for domain walls in magnetically soft iron and Permalloy. For large damping parameters, the approach to equilibrium is the same for the time method and the relaxation method. Further, we can obtain metastable equilibrium states with both methods.</jats:p> Micromagnetic calculations of 180° surface domain walls Journal of Applied Physics |
| spellingShingle | Scheinfein, M. R., Blue, James L., Journal of Applied Physics, Micromagnetic calculations of 180° surface domain walls, General Physics and Astronomy |
| title | Micromagnetic calculations of 180° surface domain walls |
| title_full | Micromagnetic calculations of 180° surface domain walls |
| title_fullStr | Micromagnetic calculations of 180° surface domain walls |
| title_full_unstemmed | Micromagnetic calculations of 180° surface domain walls |
| title_short | Micromagnetic calculations of 180° surface domain walls |
| title_sort | micromagnetic calculations of 180° surface domain walls |
| title_unstemmed | Micromagnetic calculations of 180° surface domain walls |
| topic | General Physics and Astronomy |
| url | http://dx.doi.org/10.1063/1.347499 |