Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve
Magnetic skyrmions are novel topological spin textures on the nanoscale, and significant efforts have been taken to improve their zero-field density at room temperature (RT). In this work, we reported an approach of improving zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at RT by using t...
| Main Authors: | , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2020
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| Online Access: | https://hdl.handle.net/10356/143950 |
| _version_ | 1826118363350302720 |
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| author | Ma, Mangyuan Ang, Calvin Ching Ian Li, Yong Pan, Zizhao Gan, Weiliang Lew, Wen Siang Ma, Fusheng |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Ma, Mangyuan Ang, Calvin Ching Ian Li, Yong Pan, Zizhao Gan, Weiliang Lew, Wen Siang Ma, Fusheng |
| author_sort | Ma, Mangyuan |
| collection | NTU |
| description | Magnetic skyrmions are novel topological spin textures on the nanoscale, and significant efforts have been taken to improve their zero-field density at room temperature (RT). In this work, we reported an approach of improving zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at RT by using the first-order reversal curve (FORC) technique to obtain information on the irreversible or reversible behaviors in the magnetization switching process. It was found from the FORC diagram that the magnetization reversal mechanism can be characterized into three stages: (1) reversible labyrinth stripe domains expanding or shrinking stage; (2) irreversible stripe domains fracturing stage; and (3) irreversible skyrmion annihilation stage. Furthermore, the zero-field skyrmion density can be highly improved by choosing reversal fields from the irreversible stripe domains fracturing stage. The highest skyrmion density was approached according to the maximum FORC distribution ρ. Our results have established the FORC measurement as a valuable tool for investigating magnetic multilayers of high skyrmion densities. |
| first_indexed | 2024-10-01T04:42:11Z |
| format | Journal Article |
| id | ntu-10356/143950 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:42:11Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1439502023-02-28T19:21:32Z Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve Ma, Mangyuan Ang, Calvin Ching Ian Li, Yong Pan, Zizhao Gan, Weiliang Lew, Wen Siang Ma, Fusheng School of Physical and Mathematical Sciences Science::Physics First-order Reversal Curves Magnetic Particle-systems Magnetic skyrmions are novel topological spin textures on the nanoscale, and significant efforts have been taken to improve their zero-field density at room temperature (RT). In this work, we reported an approach of improving zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at RT by using the first-order reversal curve (FORC) technique to obtain information on the irreversible or reversible behaviors in the magnetization switching process. It was found from the FORC diagram that the magnetization reversal mechanism can be characterized into three stages: (1) reversible labyrinth stripe domains expanding or shrinking stage; (2) irreversible stripe domains fracturing stage; and (3) irreversible skyrmion annihilation stage. Furthermore, the zero-field skyrmion density can be highly improved by choosing reversal fields from the irreversible stripe domains fracturing stage. The highest skyrmion density was approached according to the maximum FORC distribution ρ. Our results have established the FORC measurement as a valuable tool for investigating magnetic multilayers of high skyrmion densities. Agency for Science, Technology and Research (A*STAR) National Research Foundation (NRF) Published version Work performed at the Nanjing Normal University was supported by the National Natural Science Foundation of China (NNSFC; Grant No. 11704191), the Natural Science Foundation of Jiangsu Province of China (Grant No. BK20171026), the Jiangsu Specially-Appointed Professor, and the Six-Talent Peaks Project in Jiangsu Province of China (Grant No. XYDXX-038). Work performed at the Nanyang Technological University was supported by a NRF-CRP Grant (No. CRP9-2011-01), a RIE2020 ASTAR AME IAF-ICP Grant (No. I1801E0030), and an ASTAR AME Programmatic Grant (No. A1687b0033). W.S.L is a member of the SG-SPIN Consortium. 2020-10-02T07:37:25Z 2020-10-02T07:37:25Z 2020 Journal Article Ma, M., Ang, C. C. I., Li, Y., Pan, Z., Gan, W., Lew, W. S., & Ma, F. (2020). Enhancement of zero-field skyrmion density in [Pt/Co/FE/Ir]2 multilayers at room temperature by the first-order reversal curve. Journal of Applied Physics, 127(22), 223901-. doi:10.1063/5.0004432 0021-8979 https://hdl.handle.net/10356/143950 10.1063/5.0004432 22 127 en CRP9-2011-01 I1801E0030 A1687b0033 Journal of Applied Physics © 2020 The Author(s). All rights reserved. This paper was published by AIP Publishing in Journal of Applied Physics and is made available with permission of The Author(s). application/pdf |
| spellingShingle | Science::Physics First-order Reversal Curves Magnetic Particle-systems Ma, Mangyuan Ang, Calvin Ching Ian Li, Yong Pan, Zizhao Gan, Weiliang Lew, Wen Siang Ma, Fusheng Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve |
| title | Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve |
| title_full | Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve |
| title_fullStr | Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve |
| title_full_unstemmed | Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve |
| title_short | Enhancement of zero-field skyrmion density in [Pt/Co/Fe/Ir]2 multilayers at room temperature by the first-order reversal curve |
| title_sort | enhancement of zero field skyrmion density in pt co fe ir 2 multilayers at room temperature by the first order reversal curve |
| topic | Science::Physics First-order Reversal Curves Magnetic Particle-systems |
| url | https://hdl.handle.net/10356/143950 |
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