Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd]
An out-of-plane Oersted field produced from a current-carrying Au wire is used to induce local domain formation in wires made from [Co/Pd][subscript 15] multilayers with perpendicular anisotropy. A 100 ns pulsed current of 56-110 mA injected into the Au wire created a reverse domain size of 120-290...
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Institute of Electrical and Electronics Engineers (IEEE)
2017
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| Online Access: | http://hdl.handle.net/1721.1/112195 https://orcid.org/0000-0002-2399-0823 https://orcid.org/0000-0002-2208-5872 https://orcid.org/0000-0003-2262-1249 |
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| author | Chen, Jingsheng Ho, Pin Zhang, Jinshuo Bono, David C 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 Chen, Jingsheng Ho, Pin Zhang, Jinshuo Bono, David C Ross, Caroline A |
| author_sort | Chen, Jingsheng |
| collection | MIT |
| description | An out-of-plane Oersted field produced from a current-carrying Au wire is used to induce local domain formation in wires made from [Co/Pd][subscript 15] multilayers with perpendicular anisotropy. A 100 ns pulsed current of 56-110 mA injected into the Au wire created a reverse domain size of 120-290 nm in a Co/Pd nanowire on one side of the Au wire. A Biot-Savart model was used to estimate the position dependence of the Oersted field around the Au wire. The shape, size, and location of the reversed region of Co/Pd were consistent with the magnitude of the Oersted field and the switching field distribution of the unpatterned film. A current density of 6.2 × 10[superscript 11] Am[superscript -2] in the Co/Pd nanowire did not translate the domain walls due to low spin transfer efficiency, but the Joule heating promoted domain growth in a field below the coercive field. |
| first_indexed | 2024-09-23T07:57:22Z |
| format | Article |
| id | mit-1721.1/112195 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T07:57:22Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| record_format | dspace |
| spelling | mit-1721.1/1121952022-09-30T01:16:40Z Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] Chen, Jingsheng Ho, Pin Zhang, Jinshuo Bono, David C Ross, Caroline A Massachusetts Institute of Technology. Department of Materials Science and Engineering Ho, Pin Zhang, Jinshuo Bono, David C Ross, Caroline A An out-of-plane Oersted field produced from a current-carrying Au wire is used to induce local domain formation in wires made from [Co/Pd][subscript 15] multilayers with perpendicular anisotropy. A 100 ns pulsed current of 56-110 mA injected into the Au wire created a reverse domain size of 120-290 nm in a Co/Pd nanowire on one side of the Au wire. A Biot-Savart model was used to estimate the position dependence of the Oersted field around the Au wire. The shape, size, and location of the reversed region of Co/Pd were consistent with the magnitude of the Oersted field and the switching field distribution of the unpatterned film. A current density of 6.2 × 10[superscript 11] Am[superscript -2] in the Co/Pd nanowire did not translate the domain walls due to low spin transfer efficiency, but the Joule heating promoted domain growth in a field below the coercive field. National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (Award DMR1419807) 2017-11-16T15:41:48Z 2017-11-16T15:41:48Z 2016-06 2016-02 2017-10-17T13:46:09Z Article http://purl.org/eprint/type/JournalArticle 0018-9464 1941-0069 http://hdl.handle.net/1721.1/112195 Ho, Pin, Jinshuo Zhang, David C. Bono, Jingsheng Chen, and Caroline A. Ross. “Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd]15Nanowires.” IEEE Transactions on Magnetics 52, no. 6 (June 2016): 1–6 © Institute of Electrical and Electronics Engineers (IEEE) https://orcid.org/0000-0002-2399-0823 https://orcid.org/0000-0002-2208-5872 https://orcid.org/0000-0003-2262-1249 http://dx.doi.org/10.1109/TMAG.2016.2526972 IEEE Transactions on Magnetics Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf Institute of Electrical and Electronics Engineers (IEEE) arXiv |
| spellingShingle | Chen, Jingsheng Ho, Pin Zhang, Jinshuo Bono, David C Ross, Caroline A Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] |
| title | Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] |
| title_full | Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] |
| title_fullStr | Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] |
| title_full_unstemmed | Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] |
| title_short | Oersted Field and Spin Current Effects on Magnetic Domains in [Co/Pd] |
| title_sort | oersted field and spin current effects on magnetic domains in co pd |
| url | http://hdl.handle.net/1721.1/112195 https://orcid.org/0000-0002-2399-0823 https://orcid.org/0000-0002-2208-5872 https://orcid.org/0000-0003-2262-1249 |
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