Diode Effect for Skyrmions Interacting with Linear Protrusion Defects
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
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| _version_ | 1866916902856556544 |
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| author | Souza, J. C. Bellizotti Reichhardt, C. J. O. Reichhardt, C. Vizarim, N. P. Venegas, P. A. |
| author_facet | Souza, J. C. Bellizotti Reichhardt, C. J. O. Reichhardt, C. Vizarim, N. P. Venegas, P. A. |
| contents | We simulate collectively interacting skyrmions in a channel with periodic asymmetry, and find a strong diode effect for the skyrmion flow. There is also an asymmetry in the skyrmion annihilation rate for currents applied along the hard or easy substrate asymmetry direction, with a higher annihilation rate for hard direction currents. We map out the diode efficiency as a function of magnetic field and substrate asymmetry angle. We also show that the Magnus force impacts the diode motion and annihilation rate asymmetry by forcing skyrmions into corners of the protrusion geometry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_12090 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Diode Effect for Skyrmions Interacting with Linear Protrusion Defects Souza, J. C. Bellizotti Reichhardt, C. J. O. Reichhardt, C. Vizarim, N. P. Venegas, P. A. Mesoscale and Nanoscale Physics We simulate collectively interacting skyrmions in a channel with periodic asymmetry, and find a strong diode effect for the skyrmion flow. There is also an asymmetry in the skyrmion annihilation rate for currents applied along the hard or easy substrate asymmetry direction, with a higher annihilation rate for hard direction currents. We map out the diode efficiency as a function of magnetic field and substrate asymmetry angle. We also show that the Magnus force impacts the diode motion and annihilation rate asymmetry by forcing skyrmions into corners of the protrusion geometry. |
| title | Diode Effect for Skyrmions Interacting with Linear Protrusion Defects |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2508.12090 |