Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection
We report on cyclic anisotropic magnetoresistance change induced by current pulse injection in perpendicularly magnetized Co/Ni nanowire. By alternating the polarity of the injection pulse, domain walls (DWs) can be deterministically created and annihilated within the nanowire. The injection induces...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2017
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| Online Access: | https://hdl.handle.net/10356/85910 http://hdl.handle.net/10220/43901 |
| _version_ | 1811682677046116352 |
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| author | Kwon, J. Goolaup, Sarjoosing Tan, Funan Chang, Chip Hong Roy, K. Lew, Wen Siang |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Kwon, J. Goolaup, Sarjoosing Tan, Funan Chang, Chip Hong Roy, K. Lew, Wen Siang |
| author_sort | Kwon, J. |
| collection | NTU |
| description | We report on cyclic anisotropic magnetoresistance change induced by current pulse injection in perpendicularly magnetized Co/Ni nanowire. By alternating the polarity of the injection pulse, domain walls (DWs) can be deterministically created and annihilated within the nanowire. The injection induces a combined effect of spin transfer torque and Oersted field that leads to simultaneous creation and driving of DWs in the nanowire. DW created by single pulse injection exhibits a fixed depinning field. For multi-pulse injection, the depinning field increases and this is ascribed to the formation of DWs with opposite chirality. |
| first_indexed | 2024-10-01T04:00:38Z |
| format | Journal Article |
| id | ntu-10356/85910 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:00:38Z |
| publishDate | 2017 |
| record_format | dspace |
| spelling | ntu-10356/859102020-03-07T12:37:05Z Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection Kwon, J. Goolaup, Sarjoosing Tan, Funan Chang, Chip Hong Roy, K. Lew, Wen Siang School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Nanowire Perpendicular magnetic anisotropy We report on cyclic anisotropic magnetoresistance change induced by current pulse injection in perpendicularly magnetized Co/Ni nanowire. By alternating the polarity of the injection pulse, domain walls (DWs) can be deterministically created and annihilated within the nanowire. The injection induces a combined effect of spin transfer torque and Oersted field that leads to simultaneous creation and driving of DWs in the nanowire. DW created by single pulse injection exhibits a fixed depinning field. For multi-pulse injection, the depinning field increases and this is ascribed to the formation of DWs with opposite chirality. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) 2017-10-16T07:19:36Z 2019-12-06T16:12:31Z 2017-10-16T07:19:36Z 2019-12-06T16:12:31Z 2016 Journal Article Kwon, J., Goolaup, S., Tan, F., Chang, C. H., Roy, K., & Lew, W. S. (2016). Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection. Current Applied Physics, 17(1), 98-102. 1567-1739 https://hdl.handle.net/10356/85910 http://hdl.handle.net/10220/43901 10.1016/j.cap.2016.11.005 en Current Applied Physics © 2016 Elsevier B.V. |
| spellingShingle | Nanowire Perpendicular magnetic anisotropy Kwon, J. Goolaup, Sarjoosing Tan, Funan Chang, Chip Hong Roy, K. Lew, Wen Siang Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection |
| title | Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection |
| title_full | Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection |
| title_fullStr | Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection |
| title_full_unstemmed | Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection |
| title_short | Cyclic resistance change in perpendicularly magnetized Co/Ni nanowire induced by alternating current pulse injection |
| title_sort | cyclic resistance change in perpendicularly magnetized co ni nanowire induced by alternating current pulse injection |
| topic | Nanowire Perpendicular magnetic anisotropy |
| url | https://hdl.handle.net/10356/85910 http://hdl.handle.net/10220/43901 |
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