Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition
Abstract Spin Seebeck effect refers to the creation of spin currents due to a temperature gradient in the magnetic materials or across magnet-normal metal interfaces, which can be electrically detected through the inverse spin Hall effect when in contact with heavy metals. It offers fundamental insi...
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Nature Portfolio
2025-03-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-58306-3 |
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| author | Xue He Shilei Ding Hans Gløckner Giil Jicheng Wang Mona Bhukta Mingxing Wu Wen Shi Zhongchong Lin Zhongyu Liang Jinbo Yang Mathias Kläui Arne Brataas Yanglong Hou Rui Wu |
| author_facet | Xue He Shilei Ding Hans Gløckner Giil Jicheng Wang Mona Bhukta Mingxing Wu Wen Shi Zhongchong Lin Zhongyu Liang Jinbo Yang Mathias Kläui Arne Brataas Yanglong Hou Rui Wu |
| author_sort | Xue He |
| collection | DOAJ |
| description | Abstract Spin Seebeck effect refers to the creation of spin currents due to a temperature gradient in the magnetic materials or across magnet-normal metal interfaces, which can be electrically detected through the inverse spin Hall effect when in contact with heavy metals. It offers fundamental insights into the magnetic properties of materials, including the magnetic phase transition, static magnetic order, and magnon excitations. The behavior of the spin Seebeck effect across the spin-flop transition has been extensively studied, whereas the spin Seebeck effect across the spin-flip transition remains poorly understood. Here, we demonstrate the spin Seebeck effect in a weakly exchange-coupled van der Waals antiferromagnet CrPS4. The spin Seebeck effect increases as the magnetic field increases before the spin-flip transition due to the enhancement of the thermal spin current as a function of the applied field. A peak of spin Seebeck effect is observed at the spin-flip field, which is related to the magnon mode edges across the spin-flip field. Our results extend spin Seebeck effect research to van der Waals antiferromagnets and demonstrate an enhancement of spin Seebeck effect at the spin-flip transition. |
| format | Article |
| id | doaj-art-d496d20ca7624b5c9650084867fea970 |
| institution | OA Journals |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-d496d20ca7624b5c9650084867fea9702025-08-20T02:10:13ZengNature PortfolioNature Communications2041-17232025-03-011611810.1038/s41467-025-58306-3Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transitionXue He0Shilei Ding1Hans Gløckner Giil2Jicheng Wang3Mona Bhukta4Mingxing Wu5Wen Shi6Zhongchong Lin7Zhongyu Liang8Jinbo Yang9Mathias Kläui10Arne Brataas11Yanglong Hou12Rui Wu13Spin-X Institute, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, South China University of TechnologyDepartment of Materials, ETH ZürichCenter for Quantum Spintronics, Norwegian University of Science and TechnologySpin-X Institute, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, South China University of TechnologyInstitute of Physics, Johannes Gutenberg-University MainzDepartment of Materials, ETH ZürichCenter for Electron Microscopy, South China University of TechnologyState Key Laboratory for Mesoscopic Physics, School of Physics, Peking UniversityState Key Laboratory for Mesoscopic Physics, School of Physics, Peking UniversityState Key Laboratory for Mesoscopic Physics, School of Physics, Peking UniversityCenter for Quantum Spintronics, Norwegian University of Science and TechnologyCenter for Quantum Spintronics, Norwegian University of Science and TechnologySchool of Materials, Shenzhen Campus of Sun Yat-Sen UniversitySpin-X Institute, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, and Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, South China University of TechnologyAbstract Spin Seebeck effect refers to the creation of spin currents due to a temperature gradient in the magnetic materials or across magnet-normal metal interfaces, which can be electrically detected through the inverse spin Hall effect when in contact with heavy metals. It offers fundamental insights into the magnetic properties of materials, including the magnetic phase transition, static magnetic order, and magnon excitations. The behavior of the spin Seebeck effect across the spin-flop transition has been extensively studied, whereas the spin Seebeck effect across the spin-flip transition remains poorly understood. Here, we demonstrate the spin Seebeck effect in a weakly exchange-coupled van der Waals antiferromagnet CrPS4. The spin Seebeck effect increases as the magnetic field increases before the spin-flip transition due to the enhancement of the thermal spin current as a function of the applied field. A peak of spin Seebeck effect is observed at the spin-flip field, which is related to the magnon mode edges across the spin-flip field. Our results extend spin Seebeck effect research to van der Waals antiferromagnets and demonstrate an enhancement of spin Seebeck effect at the spin-flip transition.https://doi.org/10.1038/s41467-025-58306-3 |
| spellingShingle | Xue He Shilei Ding Hans Gløckner Giil Jicheng Wang Mona Bhukta Mingxing Wu Wen Shi Zhongchong Lin Zhongyu Liang Jinbo Yang Mathias Kläui Arne Brataas Yanglong Hou Rui Wu Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition Nature Communications |
| title | Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition |
| title_full | Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition |
| title_fullStr | Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition |
| title_full_unstemmed | Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition |
| title_short | Spin Seebeck in the weakly exchange-coupled Van der Waals antiferromagnet across the spin-flip transition |
| title_sort | spin seebeck in the weakly exchange coupled van der waals antiferromagnet across the spin flip transition |
| url | https://doi.org/10.1038/s41467-025-58306-3 |
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