Wideband wide-field imaging of spin-wave propagation using diamond quantum sensors
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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866908352428113920 |
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| author | Ogawa, Kensuke Tsukamoto, Moeta Mori, Yusuke Takafuji, Daigo Shiogai, Junichi Ueda, Kohei Matsuno, Jobu Sasaki, Kento Kobayashi, Kensuke |
| author_facet | Ogawa, Kensuke Tsukamoto, Moeta Mori, Yusuke Takafuji, Daigo Shiogai, Junichi Ueda, Kohei Matsuno, Jobu Sasaki, Kento Kobayashi, Kensuke |
| contents | Imaging spin-wave propagation in magnetic materials in a wide frequency range is crucial for understanding and applying spin-wave dynamics. Recently, nitrogen-vacancy (NV) centers in diamond have attracted attention as sensors capable of quantitatively measuring the amplitude and phase of coherent spin waves. However, the conventional sensing protocol has been limited to detecting spin waves whose frequencies match the resonance frequency of the NV spins. We demonstrate that by utilizing the AC Zeeman effect, it is possible to image spin waves propagating in a yttrium iron garnet (YIG) thin film over a wide frequency range up to a maximum detuning of 567 MHz without changing the external magnetic field. Our results expand the applicability of NV centers for spin-wave sensing and pave the way for quantitative investigations of the dynamics in various magnetic materials, such as metallic ferromagnets and van der Waals magnets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_17344 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Wideband wide-field imaging of spin-wave propagation using diamond quantum sensors Ogawa, Kensuke Tsukamoto, Moeta Mori, Yusuke Takafuji, Daigo Shiogai, Junichi Ueda, Kohei Matsuno, Jobu Sasaki, Kento Kobayashi, Kensuke Mesoscale and Nanoscale Physics Imaging spin-wave propagation in magnetic materials in a wide frequency range is crucial for understanding and applying spin-wave dynamics. Recently, nitrogen-vacancy (NV) centers in diamond have attracted attention as sensors capable of quantitatively measuring the amplitude and phase of coherent spin waves. However, the conventional sensing protocol has been limited to detecting spin waves whose frequencies match the resonance frequency of the NV spins. We demonstrate that by utilizing the AC Zeeman effect, it is possible to image spin waves propagating in a yttrium iron garnet (YIG) thin film over a wide frequency range up to a maximum detuning of 567 MHz without changing the external magnetic field. Our results expand the applicability of NV centers for spin-wave sensing and pave the way for quantitative investigations of the dynamics in various magnetic materials, such as metallic ferromagnets and van der Waals magnets. |
| title | Wideband wide-field imaging of spin-wave propagation using diamond quantum sensors |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2411.17344 |