Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes
The magnetic switching behavior in continuous NiFe films patterned with IrMn gratings is investigated experimentally and with micromagnetic simulations. The samples made by a two-step deposition process consist of a 10-nm-thick NiFe layer on which is placed 10-nm-thick IrMn stripes with width from 1...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2015
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| Online Access: | http://hdl.handle.net/1721.1/99982 https://orcid.org/0000-0003-2262-1249 |
| _version_ | 1826208955388395520 |
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| author | Liu, Frank 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 Liu, Frank Ross, Caroline A. |
| author_sort | Liu, Frank |
| collection | MIT |
| description | The magnetic switching behavior in continuous NiFe films patterned with IrMn gratings is investigated experimentally and with micromagnetic simulations. The samples made by a two-step deposition process consist of a 10-nm-thick NiFe layer on which is placed 10-nm-thick IrMn stripes with width from 100 to 500 nm and period from 240 nm to 1 μm. Exchange bias is introduced by field cooling in directions parallel or perpendicular to the IrMn stripes. The samples display a two-step hysteresis loop for higher stripe width and period, as the pinned and unpinned regions of the NiFe reverse independently but a one-step loop for lower stripe periods. The transition between these regimes is reproduced by micromagnetic modeling. |
| first_indexed | 2024-09-23T14:15:24Z |
| format | Article |
| id | mit-1721.1/99982 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:15:24Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/999822022-10-01T20:06:51Z Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes Liu, Frank Ross, Caroline A. Massachusetts Institute of Technology. Department of Materials Science and Engineering Liu, Frank Ross, Caroline A. The magnetic switching behavior in continuous NiFe films patterned with IrMn gratings is investigated experimentally and with micromagnetic simulations. The samples made by a two-step deposition process consist of a 10-nm-thick NiFe layer on which is placed 10-nm-thick IrMn stripes with width from 100 to 500 nm and period from 240 nm to 1 μm. Exchange bias is introduced by field cooling in directions parallel or perpendicular to the IrMn stripes. The samples display a two-step hysteresis loop for higher stripe width and period, as the pinned and unpinned regions of the NiFe reverse independently but a one-step loop for lower stripe periods. The transition between these regimes is reproduced by micromagnetic modeling. National Science Foundation (U.S.) Semiconductor Research Corporation. Interconnect Focus Center 2015-11-23T14:23:47Z 2015-11-23T14:23:47Z 2015-11 2015-10 2015-11-18T23:00:06Z Article http://purl.org/eprint/type/JournalArticle 2331-7019 http://hdl.handle.net/1721.1/99982 Liu, F., and C. A. Ross. “Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes.” Physical Review Applied 4, no. 5 (November 2015). © 2015 American Physical Society https://orcid.org/0000-0003-2262-1249 en http://dx.doi.org/10.1103/PhysRevApplied.4.054005 Physical Review Applied 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Liu, Frank Ross, Caroline A. Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes |
| title | Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes |
| title_full | Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes |
| title_fullStr | Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes |
| title_full_unstemmed | Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes |
| title_short | Magnetization Reversal in Ferromagnetic Films Patterned with Antiferromagnetic Gratings of Various Sizes |
| title_sort | magnetization reversal in ferromagnetic films patterned with antiferromagnetic gratings of various sizes |
| url | http://hdl.handle.net/1721.1/99982 https://orcid.org/0000-0003-2262-1249 |
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