Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis
Current-induced domain wall motion along high perpendicular magnetocrystalline anisotropy multilayers is studied by means of full micromagnetic simulations and a one-dimensional model in the presence of in-plane fields. We consider domain wall motion driven by the spin Hall effect in the presence of...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en_US |
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American Institute of Physics
2014
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| Online Access: | http://hdl.handle.net/1721.1/91620 |
| _version_ | 1811076220870197248 |
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| author | Martinez, Eduardo Emori, Satoru Perez, Noel Torres, Luis Beach, Geoffrey Stephen |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Martinez, Eduardo Emori, Satoru Perez, Noel Torres, Luis Beach, Geoffrey Stephen |
| author_sort | Martinez, Eduardo |
| collection | MIT |
| description | Current-induced domain wall motion along high perpendicular magnetocrystalline anisotropy multilayers is studied by means of full micromagnetic simulations and a one-dimensional model in the presence of in-plane fields. We consider domain wall motion driven by the spin Hall effect in the presence of the Dzyaloshinskii-Moriya interaction (DMI). In the case of relatively weak DMI, the wall propagates without significant tilting of the wall plane, and the full micromagnetic results are quantitatively reproduced by a simple rigid one-dimensional model. By contrast, significant wall-plane tilting is observed in the case of strong DMI, and a one-dimensional description including the wall tilting is required to qualitatively describe the micromagnetic results. However, in this strong-DMI case, the one-dimensional model exhibits significant quantitative discrepancies from the full micromagnetic results, in particular, when high longitudinal fields are applied in the direction of the internal domain wall magnetization. It is also shown that, even under thermal fluctuations and edge roughness, the domain wall develops a net tilting angle during its current-induced motion along samples with strong DMI. |
| first_indexed | 2024-09-23T10:18:11Z |
| format | Article |
| id | mit-1721.1/91620 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:18:11Z |
| publishDate | 2014 |
| publisher | American Institute of Physics |
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| spelling | mit-1721.1/916202022-09-26T17:05:05Z Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis Martinez, Eduardo Emori, Satoru Perez, Noel Torres, Luis Beach, Geoffrey Stephen Massachusetts Institute of Technology. Department of Materials Science and Engineering Emori, Satoru Beach, Geoffrey Stephen Current-induced domain wall motion along high perpendicular magnetocrystalline anisotropy multilayers is studied by means of full micromagnetic simulations and a one-dimensional model in the presence of in-plane fields. We consider domain wall motion driven by the spin Hall effect in the presence of the Dzyaloshinskii-Moriya interaction (DMI). In the case of relatively weak DMI, the wall propagates without significant tilting of the wall plane, and the full micromagnetic results are quantitatively reproduced by a simple rigid one-dimensional model. By contrast, significant wall-plane tilting is observed in the case of strong DMI, and a one-dimensional description including the wall tilting is required to qualitatively describe the micromagnetic results. However, in this strong-DMI case, the one-dimensional model exhibits significant quantitative discrepancies from the full micromagnetic results, in particular, when high longitudinal fields are applied in the direction of the internal domain wall magnetization. It is also shown that, even under thermal fluctuations and edge roughness, the domain wall develops a net tilting angle during its current-induced motion along samples with strong DMI. Castilla y León (Spain). Junta (Project SA163A12) Spain (project MAT2011-28532-C03-01) Microelectronics Advanced Research Corporation (MARCO) (C-SPIN) United States. Defense Advanced Research Projects Agency (C-SPIN, one of the six SRC STARnet Centers) National Science Foundation (U.S.) (NSF-ECCS-1128439) 2014-11-19T21:50:52Z 2014-11-19T21:50:52Z 2014-06 2014-04 Article http://purl.org/eprint/type/JournalArticle 0021-8979 1089-7550 http://hdl.handle.net/1721.1/91620 Martinez, Eduardo, Satoru Emori, Noel Perez, Luis Torres, and Geoffrey S. D. Beach. “Current-Driven Dynamics of Dzyaloshinskii Domain Walls in the Presence of in-Plane Fields: Full Micromagnetic and One-Dimensional Analysis.” Journal of Applied Physics 115, no. 21 (June 7, 2014): 213909. © 2014 AIP Publishing LLC. en_US http://dx.doi.org/10.1063/1.4881778 Journal of Applied Physics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Institute of Physics MIT web domain |
| spellingShingle | Martinez, Eduardo Emori, Satoru Perez, Noel Torres, Luis Beach, Geoffrey Stephen Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis |
| title | Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis |
| title_full | Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis |
| title_fullStr | Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis |
| title_full_unstemmed | Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis |
| title_short | Current-driven dynamics of Dzyaloshinskii domain walls in the presence of in-plane fields: Full micromagnetic and one-dimensional analysis |
| title_sort | current driven dynamics of dzyaloshinskii domain walls in the presence of in plane fields full micromagnetic and one dimensional analysis |
| url | http://hdl.handle.net/1721.1/91620 |
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