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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.19811 |
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| _version_ | 1866910893109936128 |
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| author | Di Pietro, Adriano Magni, Alessandro Carlotti, Giovanni Durin, Gianfranco Madami, Marco Marrows, Cristopher H. Tacchi, Silvia Darwin, Emily Huxtable, Alexandra J. Hickey, Bryan J. Kuepfeling, Michaela |
| author_facet | Di Pietro, Adriano Magni, Alessandro Carlotti, Giovanni Durin, Gianfranco Madami, Marco Marrows, Cristopher H. Tacchi, Silvia Darwin, Emily Huxtable, Alexandra J. Hickey, Bryan J. Kuepfeling, Michaela |
| contents | We study the effect of magnetic domain wall curvature on its dynamics in the creep regime in systems displaying Dzyaloshinskii-Moriya interaction (DMI). We first derive an extended creep model able to account for the finite curvature effect in magnetic bubble domain expansion. We then discuss the relative importance of this effect and discuss its dependence on the main magnetic and disorder parameters. We show this effect can be easily measured in Pt/Co multi layer samples, reporting a strong velocity reduction below a sample dependent threshold value of the magnetic bubble radius. We finally show, both theoretically and experimentally, how the radius of magnetic bubbles can have a strong impact on the reproducibility of DMI measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_19811 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic domain wall curvature effects on the velocity in the creep regime Di Pietro, Adriano Magni, Alessandro Carlotti, Giovanni Durin, Gianfranco Madami, Marco Marrows, Cristopher H. Tacchi, Silvia Darwin, Emily Huxtable, Alexandra J. Hickey, Bryan J. Kuepfeling, Michaela Mesoscale and Nanoscale Physics We study the effect of magnetic domain wall curvature on its dynamics in the creep regime in systems displaying Dzyaloshinskii-Moriya interaction (DMI). We first derive an extended creep model able to account for the finite curvature effect in magnetic bubble domain expansion. We then discuss the relative importance of this effect and discuss its dependence on the main magnetic and disorder parameters. We show this effect can be easily measured in Pt/Co multi layer samples, reporting a strong velocity reduction below a sample dependent threshold value of the magnetic bubble radius. We finally show, both theoretically and experimentally, how the radius of magnetic bubbles can have a strong impact on the reproducibility of DMI measurements. |
| title | Magnetic domain wall curvature effects on the velocity in the creep regime |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.19811 |