Fast switchable unidirectional magnon emitter
Fuente:
arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
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| _version_ | 1866909333060583424 |
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| author | Wang, Yueqi Guo, Mengying Davídková, Kristýna Verba, Roman Guo, Xueyu Dubs, Carsten Chumak, Andrii V. Pirro, Philipp Wang, Qi |
| author_facet | Wang, Yueqi Guo, Mengying Davídková, Kristýna Verba, Roman Guo, Xueyu Dubs, Carsten Chumak, Andrii V. Pirro, Philipp Wang, Qi |
| contents | Magnon spintronics is an emerging field that explores the use of magnons, the quanta of spin waves in magnetic materials for information processing and communication. Achieving unidirectional information transport with fast switching capability is critical for the development of fast integrated magnonic circuits, which offer significant advantages in high-speed, low-power information processing. However, previous unidirectional information transport has primarily focused on Damon-Eshbach spin wave modes, which are non-switchable as their propagation direction is defined by the direction of the external field and cannot be changed in a short time. Here, we experimentally demonstrate a fast switchable unidirectional magnon emitter in the forward volume spin wave mode by a current-induced asymmetric Oersted field. Our findings reveal significant nonreciprocity and nanosecond switchability, underscoring the potential of the method to advance high-speed spin-wave processing networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_01511 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Fast switchable unidirectional magnon emitter Wang, Yueqi Guo, Mengying Davídková, Kristýna Verba, Roman Guo, Xueyu Dubs, Carsten Chumak, Andrii V. Pirro, Philipp Wang, Qi Mesoscale and Nanoscale Physics Magnon spintronics is an emerging field that explores the use of magnons, the quanta of spin waves in magnetic materials for information processing and communication. Achieving unidirectional information transport with fast switching capability is critical for the development of fast integrated magnonic circuits, which offer significant advantages in high-speed, low-power information processing. However, previous unidirectional information transport has primarily focused on Damon-Eshbach spin wave modes, which are non-switchable as their propagation direction is defined by the direction of the external field and cannot be changed in a short time. Here, we experimentally demonstrate a fast switchable unidirectional magnon emitter in the forward volume spin wave mode by a current-induced asymmetric Oersted field. Our findings reveal significant nonreciprocity and nanosecond switchability, underscoring the potential of the method to advance high-speed spin-wave processing networks. |
| title | Fast switchable unidirectional magnon emitter |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2410.01511 |