Topological magnetic defects in a strong permanent magnet Nd2Fe14B
Skyrmions, highly mobile and manipulable magnetic objects, have garnered significant interest for their potential applications in modern magnetic device technology. However, their formation has been limited to a small number of materials due to the delicate balance of magnetic energies involved. In...
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| Language: | English |
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Elsevier
2024-12-01
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| Series: | Materials Today Quantum |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2950257824000179 |
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| author | Juyoung Jeong Yongwoo Lee Shi-Zeng Lin Yoon Hee Jeong Hye Jung Chang Jeehoon Kim |
| author_facet | Juyoung Jeong Yongwoo Lee Shi-Zeng Lin Yoon Hee Jeong Hye Jung Chang Jeehoon Kim |
| author_sort | Juyoung Jeong |
| collection | DOAJ |
| description | Skyrmions, highly mobile and manipulable magnetic objects, have garnered significant interest for their potential applications in modern magnetic device technology. However, their formation has been limited to a small number of materials due to the delicate balance of magnetic energies involved. In this study, we report the irreversible formation of skyrmions in Nd2Fe14B, a rare-earth permanent magnet characterized by large magnetic anisotropy. Remarkably, these magnetic topological defects exist over a wide range of temperatures and magnetic fields (295–565 K and 0–0.1 T) due to the high Curie temperature and significant magnetic anisotropy of Nd2Fe14B. Our findings not only unveil a new material where skyrmions can form but also open up possibilities for exploring topological defects in various magnetic systems, including strong hard magnets. |
| format | Article |
| id | doaj-art-a0ebb3d41d7b44c0b0b5bef1f2a248c1 |
| institution | DOAJ |
| issn | 2950-2578 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials Today Quantum |
| spelling | doaj-art-a0ebb3d41d7b44c0b0b5bef1f2a248c12025-08-20T02:51:39ZengElsevierMaterials Today Quantum2950-25782024-12-01410001710.1016/j.mtquan.2024.100017Topological magnetic defects in a strong permanent magnet Nd2Fe14BJuyoung Jeong0Yongwoo Lee1Shi-Zeng Lin2Yoon Hee Jeong3Hye Jung Chang4Jeehoon Kim5Department of Physics, Pohang University of Science and Technology, Pohang 37673, Republic of KoreaDepartment of Physics, Pohang University of Science and Technology, Pohang 37673, Republic of KoreaTheoretical Division, T-4, CNLS and CINT, Los Alamos National Laboratory, Los Alamos, NM 87545, USADepartment of Physics, Pohang University of Science and Technology, Pohang 37673, Republic of KoreaAdvanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; Department of Nanomaterials Science and Technology, University of Science and Technology, Daejeon 34113, Republic of Korea; Corresponding author at: Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea.Department of Physics, Pohang University of Science and Technology, Pohang 37673, Republic of Korea; Corresponding author.Skyrmions, highly mobile and manipulable magnetic objects, have garnered significant interest for their potential applications in modern magnetic device technology. However, their formation has been limited to a small number of materials due to the delicate balance of magnetic energies involved. In this study, we report the irreversible formation of skyrmions in Nd2Fe14B, a rare-earth permanent magnet characterized by large magnetic anisotropy. Remarkably, these magnetic topological defects exist over a wide range of temperatures and magnetic fields (295–565 K and 0–0.1 T) due to the high Curie temperature and significant magnetic anisotropy of Nd2Fe14B. Our findings not only unveil a new material where skyrmions can form but also open up possibilities for exploring topological defects in various magnetic systems, including strong hard magnets.http://www.sciencedirect.com/science/article/pii/S2950257824000179SkyrmionLorentz transmission electron microscopyMagnetic structureTopological defect |
| spellingShingle | Juyoung Jeong Yongwoo Lee Shi-Zeng Lin Yoon Hee Jeong Hye Jung Chang Jeehoon Kim Topological magnetic defects in a strong permanent magnet Nd2Fe14B Materials Today Quantum Skyrmion Lorentz transmission electron microscopy Magnetic structure Topological defect |
| title | Topological magnetic defects in a strong permanent magnet Nd2Fe14B |
| title_full | Topological magnetic defects in a strong permanent magnet Nd2Fe14B |
| title_fullStr | Topological magnetic defects in a strong permanent magnet Nd2Fe14B |
| title_full_unstemmed | Topological magnetic defects in a strong permanent magnet Nd2Fe14B |
| title_short | Topological magnetic defects in a strong permanent magnet Nd2Fe14B |
| title_sort | topological magnetic defects in a strong permanent magnet nd2fe14b |
| topic | Skyrmion Lorentz transmission electron microscopy Magnetic structure Topological defect |
| url | http://www.sciencedirect.com/science/article/pii/S2950257824000179 |
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