High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets
Using micromagnetic simulations, we find that the high frequency spin wave modes of vortexes in circular magnetostrictive nanomagnets can be excited by in-plane strain pulses, which are quite distinct from the spin wave modes excited by magnetic field pulses. The spectrum and spatial distribution of...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2021-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0070897 |
| _version_ | 1819283212307791872 |
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| author | Huanqing Cui Xiaokuo Yang Lin Ni Mingliang Zhang Jiahao Liu Bo Wei Yabo Chen Jiahui Yuan |
| author_facet | Huanqing Cui Xiaokuo Yang Lin Ni Mingliang Zhang Jiahao Liu Bo Wei Yabo Chen Jiahui Yuan |
| author_sort | Huanqing Cui |
| collection | DOAJ |
| description | Using micromagnetic simulations, we find that the high frequency spin wave modes of vortexes in circular magnetostrictive nanomagnets can be excited by in-plane strain pulses, which are quite distinct from the spin wave modes excited by magnetic field pulses. The spectrum and spatial distribution of spin wave modes are obtained as a function of the diameter (D) and thickness (L) of nanomagnets. Our results show that the increase in diameter leads to a redshift of the frequencies of spin wave modes. Furthermore, we investigate the impact of ring shape impurities on the high frequency spin wave modes, and it is found that both the type and position of impurities can be used to tailor the strain induced spin wave spectroscopy of magnetic vortexes. Our findings provide meaningful guidelines for the further study of strain-mediated sub-nanosecond magnetization dynamics, which may obviously improve the operating frequency of straintronic devices. |
| first_indexed | 2024-12-24T01:27:53Z |
| format | Article |
| id | doaj.art-0b9cbb9b511243bbab325c456689c76f |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-24T01:27:53Z |
| publishDate | 2021-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-0b9cbb9b511243bbab325c456689c76f2022-12-21T17:22:27ZengAIP Publishing LLCAIP Advances2158-32262021-12-011112125314125314-510.1063/5.0070897High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnetsHuanqing Cui0Xiaokuo Yang1Lin Ni2Mingliang Zhang3Jiahao Liu4Bo Wei5Yabo Chen6Jiahui Yuan7Fundamentals Department, Air Force Engineering University, Xi’an 710051, ChinaFundamentals Department, Air Force Engineering University, Xi’an 710051, ChinaCollege of Information and Communication, National University of Defense Technology, Xi’an 710006, ChinaAir Force Communications Non-Commission Officer Academy, Dalian 116100, ChinaInstitute for Quantum Information and State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, ChinaFundamentals Department, Air Force Engineering University, Xi’an 710051, ChinaInstitute for Quantum Information and State Key Laboratory of High Performance Computing, College of Computer, National University of Defense Technology, Changsha 410073, ChinaFundamentals Department, Air Force Engineering University, Xi’an 710051, ChinaUsing micromagnetic simulations, we find that the high frequency spin wave modes of vortexes in circular magnetostrictive nanomagnets can be excited by in-plane strain pulses, which are quite distinct from the spin wave modes excited by magnetic field pulses. The spectrum and spatial distribution of spin wave modes are obtained as a function of the diameter (D) and thickness (L) of nanomagnets. Our results show that the increase in diameter leads to a redshift of the frequencies of spin wave modes. Furthermore, we investigate the impact of ring shape impurities on the high frequency spin wave modes, and it is found that both the type and position of impurities can be used to tailor the strain induced spin wave spectroscopy of magnetic vortexes. Our findings provide meaningful guidelines for the further study of strain-mediated sub-nanosecond magnetization dynamics, which may obviously improve the operating frequency of straintronic devices.http://dx.doi.org/10.1063/5.0070897 |
| spellingShingle | Huanqing Cui Xiaokuo Yang Lin Ni Mingliang Zhang Jiahao Liu Bo Wei Yabo Chen Jiahui Yuan High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets AIP Advances |
| title | High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets |
| title_full | High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets |
| title_fullStr | High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets |
| title_full_unstemmed | High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets |
| title_short | High-frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets |
| title_sort | high frequency spin wave modes excited by strain pulse in vortex state magnetostrictive nanomagnets |
| url | http://dx.doi.org/10.1063/5.0070897 |
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