Unraveling Nanostructured Spin Textures in Bulk Magnets
One of the key challenges in magnetism remains the determination of the nanoscopic magnetization profile within the volume of thick samples, such as permanent ferromagnets. Thanks to the large penetration depth of neutrons, magnetic small‐angle neutron scattering (SANS) is a powerful technique to ch...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2021-01-01
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| Series: | Small Science |
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| Online Access: | https://doi.org/10.1002/smsc.202000003 |
| _version_ | 1818581254742736896 |
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| author | Philipp Bender Jonathan Leliaert Mathias Bersweiler Dirk Honecker Andreas Michels |
| author_facet | Philipp Bender Jonathan Leliaert Mathias Bersweiler Dirk Honecker Andreas Michels |
| author_sort | Philipp Bender |
| collection | DOAJ |
| description | One of the key challenges in magnetism remains the determination of the nanoscopic magnetization profile within the volume of thick samples, such as permanent ferromagnets. Thanks to the large penetration depth of neutrons, magnetic small‐angle neutron scattering (SANS) is a powerful technique to characterize bulk samples. The major challenge regarding magnetic SANS is accessing the real‐space magnetization vector field from the reciprocal scattering data. In this study, a fast iterative algorithm is introduced that allows one to extract the underlying 2D magnetic correlation functions from the scattering patterns. This approach is used here to analyze the magnetic microstructure of Nanoperm, a nanocrystalline alloy which is widely used in power electronics due to its extraordinary soft magnetic properties. It can be shown that the computed correlation functions clearly reflect the projection of the 3D magnetization vector field onto the detector plane, which demonstrates that the used methodology can be applied to probe directly spin textures within bulk samples with nanometer resolution. |
| first_indexed | 2024-12-16T07:30:34Z |
| format | Article |
| id | doaj.art-58dd54146f9c4769ba22586d56c69728 |
| institution | Directory Open Access Journal |
| issn | 2688-4046 |
| language | English |
| last_indexed | 2024-12-16T07:30:34Z |
| publishDate | 2021-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Science |
| spelling | doaj.art-58dd54146f9c4769ba22586d56c697282022-12-21T22:39:22ZengWiley-VCHSmall Science2688-40462021-01-0111n/an/a10.1002/smsc.202000003Unraveling Nanostructured Spin Textures in Bulk MagnetsPhilipp Bender0Jonathan Leliaert1Mathias Bersweiler2Dirk Honecker3Andreas Michels4Department of Physics and Materials Science University of Luxembourg 162A Avenue de la Faïencerie L-1511 Luxembourg Grand Duchy of LuxembourgDepartment of Solid State Sciences Ghent University Krijgslaan 281/S1 9000 Ghent BelgiumDepartment of Physics and Materials Science University of Luxembourg 162A Avenue de la Faïencerie L-1511 Luxembourg Grand Duchy of LuxembourgDepartment of Physics and Materials Science University of Luxembourg 162A Avenue de la Faïencerie L-1511 Luxembourg Grand Duchy of LuxembourgDepartment of Physics and Materials Science University of Luxembourg 162A Avenue de la Faïencerie L-1511 Luxembourg Grand Duchy of LuxembourgOne of the key challenges in magnetism remains the determination of the nanoscopic magnetization profile within the volume of thick samples, such as permanent ferromagnets. Thanks to the large penetration depth of neutrons, magnetic small‐angle neutron scattering (SANS) is a powerful technique to characterize bulk samples. The major challenge regarding magnetic SANS is accessing the real‐space magnetization vector field from the reciprocal scattering data. In this study, a fast iterative algorithm is introduced that allows one to extract the underlying 2D magnetic correlation functions from the scattering patterns. This approach is used here to analyze the magnetic microstructure of Nanoperm, a nanocrystalline alloy which is widely used in power electronics due to its extraordinary soft magnetic properties. It can be shown that the computed correlation functions clearly reflect the projection of the 3D magnetization vector field onto the detector plane, which demonstrates that the used methodology can be applied to probe directly spin textures within bulk samples with nanometer resolution.https://doi.org/10.1002/smsc.202000003magnetic imagingmagnetic materialsmagnetic small-angle neutron scatteringnanomaterialsneutron scattering |
| spellingShingle | Philipp Bender Jonathan Leliaert Mathias Bersweiler Dirk Honecker Andreas Michels Unraveling Nanostructured Spin Textures in Bulk Magnets Small Science magnetic imaging magnetic materials magnetic small-angle neutron scattering nanomaterials neutron scattering |
| title | Unraveling Nanostructured Spin Textures in Bulk Magnets |
| title_full | Unraveling Nanostructured Spin Textures in Bulk Magnets |
| title_fullStr | Unraveling Nanostructured Spin Textures in Bulk Magnets |
| title_full_unstemmed | Unraveling Nanostructured Spin Textures in Bulk Magnets |
| title_short | Unraveling Nanostructured Spin Textures in Bulk Magnets |
| title_sort | unraveling nanostructured spin textures in bulk magnets |
| topic | magnetic imaging magnetic materials magnetic small-angle neutron scattering nanomaterials neutron scattering |
| url | https://doi.org/10.1002/smsc.202000003 |
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