Demonstration of a robust magnonic spin wave interferometer
Magnonics is an emerging field dealing with ultralow power consumption logic circuits, in which the flow of spin waves, rather than electric charges, transmits and processes information. Waves, including spin waves, excel at encoding information via their phase using interference. This enables a num...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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Nature Publishing Group
2017
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| Online Access: | http://hdl.handle.net/1721.1/109328 https://orcid.org/0000-0003-2262-1249 |
| _version_ | 1811071572522303488 |
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| author | Kanazawa, Naoki Goto, Taichi Sekiguchi, Koji Granovsky, Alexander B. Takagi, Hiroyuki Nakamura, Yuichi Inoue, Mitsuteru Ross, Caroline A |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Kanazawa, Naoki Goto, Taichi Sekiguchi, Koji Granovsky, Alexander B. Takagi, Hiroyuki Nakamura, Yuichi Inoue, Mitsuteru Ross, Caroline A |
| author_sort | Kanazawa, Naoki |
| collection | MIT |
| description | Magnonics is an emerging field dealing with ultralow power consumption logic circuits, in which the flow of spin waves, rather than electric charges, transmits and processes information. Waves, including spin waves, excel at encoding information via their phase using interference. This enables a number of inputs to be processed in one device, which offers the promise of multi-input multi-output logic gates. To realize such an integrated device, it is essential to demonstrate spin wave interferometers using spatially isotropic spin waves with high operational stability. However, spin wave reflection at the waveguide edge has previously limited the stability of interfering waves, precluding the use of isotropic spin waves, i.e., forward volume waves. Here, a spin wave absorber is demonstrated comprising a yttrium iron garnet waveguide partially covered by gold. This device is shown experimentally to be a robust spin wave interferometer using the forward volume mode, with a large ON/OFF isolation value of 13.7 dB even in magnetic fields over 30 Oe. |
| first_indexed | 2024-09-23T08:53:17Z |
| format | Article |
| id | mit-1721.1/109328 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T08:53:17Z |
| publishDate | 2017 |
| publisher | Nature Publishing Group |
| record_format | dspace |
| spelling | mit-1721.1/1093282022-09-30T11:57:43Z Demonstration of a robust magnonic spin wave interferometer Kanazawa, Naoki Goto, Taichi Sekiguchi, Koji Granovsky, Alexander B. Takagi, Hiroyuki Nakamura, Yuichi Inoue, Mitsuteru Ross, Caroline A Massachusetts Institute of Technology. Department of Materials Science and Engineering Ross, Caroline A Magnonics is an emerging field dealing with ultralow power consumption logic circuits, in which the flow of spin waves, rather than electric charges, transmits and processes information. Waves, including spin waves, excel at encoding information via their phase using interference. This enables a number of inputs to be processed in one device, which offers the promise of multi-input multi-output logic gates. To realize such an integrated device, it is essential to demonstrate spin wave interferometers using spatially isotropic spin waves with high operational stability. However, spin wave reflection at the waveguide edge has previously limited the stability of interfering waves, precluding the use of isotropic spin waves, i.e., forward volume waves. Here, a spin wave absorber is demonstrated comprising a yttrium iron garnet waveguide partially covered by gold. This device is shown experimentally to be a robust spin wave interferometer using the forward volume mode, with a large ON/OFF isolation value of 13.7 dB even in magnetic fields over 30 Oe. 2017-05-24T19:42:16Z 2017-05-24T19:42:16Z 2016-07 2016-01 Article http://purl.org/eprint/type/JournalArticle 2045-2322 http://hdl.handle.net/1721.1/109328 Kanazawa, Naoki et al. “Demonstration of a Robust Magnonic Spin Wave Interferometer.” Scientific Reports 6.1 (2016): n. pag. https://orcid.org/0000-0003-2262-1249 en_US http://dx.doi.org/10.1038/srep30268 Scientific Reports Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature |
| spellingShingle | Kanazawa, Naoki Goto, Taichi Sekiguchi, Koji Granovsky, Alexander B. Takagi, Hiroyuki Nakamura, Yuichi Inoue, Mitsuteru Ross, Caroline A Demonstration of a robust magnonic spin wave interferometer |
| title | Demonstration of a robust magnonic spin wave interferometer |
| title_full | Demonstration of a robust magnonic spin wave interferometer |
| title_fullStr | Demonstration of a robust magnonic spin wave interferometer |
| title_full_unstemmed | Demonstration of a robust magnonic spin wave interferometer |
| title_short | Demonstration of a robust magnonic spin wave interferometer |
| title_sort | demonstration of a robust magnonic spin wave interferometer |
| url | http://hdl.handle.net/1721.1/109328 https://orcid.org/0000-0003-2262-1249 |
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