Imaging three-dimensional nanoscale magnetization dynamics
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arXiv
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2020
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| _version_ | 1866909512027340800 |
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| author | Donnelly, Claire Finizio, Simone Gliga, Sebastian Holler, Mirko Hrabec, Aleš Odstrčil, Michal Mayr, Sina Scagnoli, Valerio Heyderman, Laura J. Guizar-Sicairos, Manuel Raabe, Jörg |
| author_facet | Donnelly, Claire Finizio, Simone Gliga, Sebastian Holler, Mirko Hrabec, Aleš Odstrčil, Michal Mayr, Sina Scagnoli, Valerio Heyderman, Laura J. Guizar-Sicairos, Manuel Raabe, Jörg |
| contents | The ability to experimentally map the three-dimensional structure and dynamics in bulk and patterned three-dimensional ferromagnets is essential both for understanding fundamental micromagnetic processes, as well as for investigating technologically-relevant micromagnets whose functions are connected to the presence and dynamics of fundamental micromagnetic structures, such as domain walls and vortices. Here, we demonstrate time-resolved magnetic laminography, a technique which offers access to the temporal evolution of a complex three-dimensional magnetic structure with nanoscale resolution. We image the dynamics of the complex three-dimensional magnetization state in a two-phase bulk magnet with a lateral spatial resolution of 50 nm, mapping the transition between domain wall precession and the dynamics of a uniform magnetic domain that is attributed to variations in the magnetization state across the phase boundary. The capability to probe three-dimensional magnetic structures with temporal resolution paves the way for the experimental investigation of novel functionalities arising from dynamic phenomena in bulk and three-dimensional patterned nanomagnets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2001_07940 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Imaging three-dimensional nanoscale magnetization dynamics Donnelly, Claire Finizio, Simone Gliga, Sebastian Holler, Mirko Hrabec, Aleš Odstrčil, Michal Mayr, Sina Scagnoli, Valerio Heyderman, Laura J. Guizar-Sicairos, Manuel Raabe, Jörg Mesoscale and Nanoscale Physics Materials Science The ability to experimentally map the three-dimensional structure and dynamics in bulk and patterned three-dimensional ferromagnets is essential both for understanding fundamental micromagnetic processes, as well as for investigating technologically-relevant micromagnets whose functions are connected to the presence and dynamics of fundamental micromagnetic structures, such as domain walls and vortices. Here, we demonstrate time-resolved magnetic laminography, a technique which offers access to the temporal evolution of a complex three-dimensional magnetic structure with nanoscale resolution. We image the dynamics of the complex three-dimensional magnetization state in a two-phase bulk magnet with a lateral spatial resolution of 50 nm, mapping the transition between domain wall precession and the dynamics of a uniform magnetic domain that is attributed to variations in the magnetization state across the phase boundary. The capability to probe three-dimensional magnetic structures with temporal resolution paves the way for the experimental investigation of novel functionalities arising from dynamic phenomena in bulk and three-dimensional patterned nanomagnets. |
| title | Imaging three-dimensional nanoscale magnetization dynamics |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2001.07940 |