Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip
The photon-assisted magnetic recording utilizes the ultrafast laser to excite the spin wave in the magnetic nanostructures and accordingly switch its magnetization state. Here, by means of micromagnetic simulation, the motion of magnetic skyrmions, a topologically protected chiral magnet with few na...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2018/2602913 |
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| author | Guangfu Zhang Ye Tian Yangbao Deng Dongchu Jiang Shuguang Deng |
| author_facet | Guangfu Zhang Ye Tian Yangbao Deng Dongchu Jiang Shuguang Deng |
| author_sort | Guangfu Zhang |
| collection | DOAJ |
| description | The photon-assisted magnetic recording utilizes the ultrafast laser to excite the spin wave in the magnetic nanostructures and accordingly switch its magnetization state. Here, by means of micromagnetic simulation, the motion of magnetic skyrmions, a topologically protected chiral magnet with few nanometer size, induced by the spin wave is studied. It is found that the magnetic skyrmion can move in the same direction of spin-wave propagation, which is first accelerated and then decelerated exponentially. The magnetic skyrmion motion originated from the robust coupling of the spin waves with the skyrmion, through the SW’s linear momentum transfer torque acting on the skyrmion. Besides amplitude, the reflectivity of the spin wave by skyrmion has tremendous impact on the velocity of skyrmion motion. The skyrmion velocities are mainly determined by the reflectivity, when the spin-wave amplitude is almost identical. Our results give guidance for the design and development of spin-wave control spintronics. |
| format | Article |
| id | doaj-art-4592b1ef2b3e44128b9360f999ec64ab |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-4592b1ef2b3e44128b9360f999ec64ab2025-02-03T05:54:40ZengWileyJournal of Nanotechnology1687-95031687-95112018-01-01201810.1155/2018/26029132602913Spin-Wave-Driven Skyrmion Motion in Magnetic NanostripGuangfu Zhang0Ye Tian1Yangbao Deng2Dongchu Jiang3Shuguang Deng4School of Communication and Electronic Engineering, Hunan City University, Yiyang 413000, ChinaSchool of Communication and Electronic Engineering, Hunan City University, Yiyang 413000, ChinaSchool of Communication and Electronic Engineering, Hunan City University, Yiyang 413000, ChinaSchool of Communication and Electronic Engineering, Hunan City University, Yiyang 413000, ChinaHunan Province Higher Education Key Laboratory of Modeling and Monitoring on the Near-Earth Electromagnetic Environments, Changsha University of Science and Technology, Changsha 410076, ChinaThe photon-assisted magnetic recording utilizes the ultrafast laser to excite the spin wave in the magnetic nanostructures and accordingly switch its magnetization state. Here, by means of micromagnetic simulation, the motion of magnetic skyrmions, a topologically protected chiral magnet with few nanometer size, induced by the spin wave is studied. It is found that the magnetic skyrmion can move in the same direction of spin-wave propagation, which is first accelerated and then decelerated exponentially. The magnetic skyrmion motion originated from the robust coupling of the spin waves with the skyrmion, through the SW’s linear momentum transfer torque acting on the skyrmion. Besides amplitude, the reflectivity of the spin wave by skyrmion has tremendous impact on the velocity of skyrmion motion. The skyrmion velocities are mainly determined by the reflectivity, when the spin-wave amplitude is almost identical. Our results give guidance for the design and development of spin-wave control spintronics.http://dx.doi.org/10.1155/2018/2602913 |
| spellingShingle | Guangfu Zhang Ye Tian Yangbao Deng Dongchu Jiang Shuguang Deng Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip Journal of Nanotechnology |
| title | Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip |
| title_full | Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip |
| title_fullStr | Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip |
| title_full_unstemmed | Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip |
| title_short | Spin-Wave-Driven Skyrmion Motion in Magnetic Nanostrip |
| title_sort | spin wave driven skyrmion motion in magnetic nanostrip |
| url | http://dx.doi.org/10.1155/2018/2602913 |
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