Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers
The magnetic properties of a thin film consisting of an exchange-coupled [Co/Ni][subscript 2]/NiFe multilayer have been studied as a function of the NiFe thickness by using Monte Carlo modeling and compared with experimental results of [Co/Ni][subscript 4]/Co/NiFe multilayers. Both modeling and expe...
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Institute of Electrical and Electronics Engineers (IEEE)
2017
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| Online Access: | http://hdl.handle.net/1721.1/112260 https://orcid.org/0000-0003-2262-1249 |
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| author | Escobar, Roberto A. Castillo-Sepulveda, Sebastian Altbir, Dora Chung, Sunjae Anh Nguyen, T. N. Mohseni, M. Akerman, Johan Tryputen, Larysa Ross, Caroline A |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Escobar, Roberto A. Castillo-Sepulveda, Sebastian Altbir, Dora Chung, Sunjae Anh Nguyen, T. N. Mohseni, M. Akerman, Johan Tryputen, Larysa Ross, Caroline A |
| author_sort | Escobar, Roberto A. |
| collection | MIT |
| description | The magnetic properties of a thin film consisting of an exchange-coupled [Co/Ni][subscript 2]/NiFe multilayer have been studied as a function of the NiFe thickness by using Monte Carlo modeling and compared with experimental results of [Co/Ni][subscript 4]/Co/NiFe multilayers. Both modeling and experiment showed that the NiFe thickness controls the effective anisotropy. The direction of the easy axis is determined by a competition between the perpendicular crystalline anisotropy of the Co/Ni and the shape anisotropy of the multilayer. As the thickness of the NiFe layer increases, the reversal mechanism of the thin film changes from the nucleation of reverse domains to vortex propagation. Therefore, our results reveal the magnetic configurations and the easy axis reorientation of mixed-anisotropy multilayers. Index Terms—Perpendicular magnetic anisotropy, hysteresis, multilayers, reversal modes. |
| first_indexed | 2024-09-23T11:01:58Z |
| format | Article |
| id | mit-1721.1/112260 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:01:58Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/1122602022-09-27T16:40:28Z Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers Escobar, Roberto A. Castillo-Sepulveda, Sebastian Altbir, Dora Chung, Sunjae Anh Nguyen, T. N. Mohseni, M. Akerman, Johan Tryputen, Larysa Ross, Caroline A Massachusetts Institute of Technology. Department of Materials Science and Engineering Tryputen, Larysa Ross, Caroline A The magnetic properties of a thin film consisting of an exchange-coupled [Co/Ni][subscript 2]/NiFe multilayer have been studied as a function of the NiFe thickness by using Monte Carlo modeling and compared with experimental results of [Co/Ni][subscript 4]/Co/NiFe multilayers. Both modeling and experiment showed that the NiFe thickness controls the effective anisotropy. The direction of the easy axis is determined by a competition between the perpendicular crystalline anisotropy of the Co/Ni and the shape anisotropy of the multilayer. As the thickness of the NiFe layer increases, the reversal mechanism of the thin film changes from the nucleation of reverse domains to vortex propagation. Therefore, our results reveal the magnetic configurations and the easy axis reorientation of mixed-anisotropy multilayers. Index Terms—Perpendicular magnetic anisotropy, hysteresis, multilayers, reversal modes. Semiconductor Research Corporation. Center for Spintronic Materials, Interfaces, and Novel Architectures Göran Gustafsson Foundation National Science Foundation (U.S.) 2017-11-20T21:49:24Z 2017-11-20T21:49:24Z 2015-12 2017-10-26T16:52:22Z Article http://purl.org/eprint/type/JournalArticle 1949-307X 1949-3088 http://hdl.handle.net/1721.1/112260 Escobar, Roberto A., et al. “Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers.” IEEE Magnetics Letters, vol. 7, 2016, pp. 1–5. https://orcid.org/0000-0003-2262-1249 http://dx.doi.org/10.1109/LMAG.2015.2512530 IEEE Magnetics Letters Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) Other repository |
| spellingShingle | Escobar, Roberto A. Castillo-Sepulveda, Sebastian Altbir, Dora Chung, Sunjae Anh Nguyen, T. N. Mohseni, M. Akerman, Johan Tryputen, Larysa Ross, Caroline A Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers |
| title | Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers |
| title_full | Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers |
| title_fullStr | Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers |
| title_full_unstemmed | Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers |
| title_short | Monte Carlo Modeling of Mixed-Anisotropy [Co/Ni][subscript 2] Multilayers |
| title_sort | monte carlo modeling of mixed anisotropy co ni subscript 2 multilayers |
| url | http://hdl.handle.net/1721.1/112260 https://orcid.org/0000-0003-2262-1249 |
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