Current-induced magnon trapping in spin torque oscillation
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866913269765111808 |
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| author | Makiuchi, Takahiko Kanazawa, Naoki Saitoh, Eiji |
| author_facet | Makiuchi, Takahiko Kanazawa, Naoki Saitoh, Eiji |
| contents | Spin torque nano-oscillators realized by magnetization dynamics trapped in a current-induced potential are reported. We fabricated Ni$_{81}$Fe$_{19}$/Pt nanostructures and measured current-induced microwave emission from the structures. The result shows an increase in the magnitude and spectral narrowing of the microwave emission. We demonstrate that the current-induced magnetic field suppresses magnon radiation loss and significantly reduces the linewidth and the threshold current required for the spin torque oscillation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_11618 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Current-induced magnon trapping in spin torque oscillation Makiuchi, Takahiko Kanazawa, Naoki Saitoh, Eiji Mesoscale and Nanoscale Physics Strongly Correlated Electrons Spin torque nano-oscillators realized by magnetization dynamics trapped in a current-induced potential are reported. We fabricated Ni$_{81}$Fe$_{19}$/Pt nanostructures and measured current-induced microwave emission from the structures. The result shows an increase in the magnitude and spectral narrowing of the microwave emission. We demonstrate that the current-induced magnetic field suppresses magnon radiation loss and significantly reduces the linewidth and the threshold current required for the spin torque oscillation. |
| title | Current-induced magnon trapping in spin torque oscillation |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2403.11618 |