Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles
Abstract The large anomalous Nernst effect in magnetic Weyl semimetals is one of the most intriguing transport phenomena, which draws significant attention for its potential applications in topological thermoelectrics. Despite frequent reports of substantial anomalous Nernst conductivity (ANC), meth...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202411702 |
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| author | Meng Lyu Junyan Liu Jianlei Shen Shen Zhang Yang Liu Jinying Yang Yibo Wang Yiting Feng Binbin Wang Hongxiang Wei Enke Liu |
| author_facet | Meng Lyu Junyan Liu Jianlei Shen Shen Zhang Yang Liu Jinying Yang Yibo Wang Yiting Feng Binbin Wang Hongxiang Wei Enke Liu |
| author_sort | Meng Lyu |
| collection | DOAJ |
| description | Abstract The large anomalous Nernst effect in magnetic Weyl semimetals is one of the most intriguing transport phenomena, which draws significant attention for its potential applications in topological thermoelectrics. Despite frequent reports of substantial anomalous Nernst conductivity (ANC), methods to optimize Nernst thermoelectrics remain limited. The research reveals that the magnitude of the ANC is directly related to the sum of the anomalous Nernst and Hall angles. While the sign of the anomalous Hall angle is relatively stable in a certain material, the sign of the anomalous Nernst angle can be intrinsically tuned. Therefore, the ANC can be effectively optimized by regulating these angles to work in concert. This finding is verified by experimental modulation from iron‐doped magnetic topological material Co3Sn2S2. Additionally, a robust TlnT scaling law of the ANC over the temperature range of 40 to 140 K is observed in all studied samples, suggesting an intrinsic origin of the ANC. Considering the common opposite sign of the anomalous Nernst and Hall angles in many magnetic topological materials, the research offers an applicable scheme for optimizing the Nernst thermoelectrics. |
| format | Article |
| id | doaj-art-dea2ba6e72df45cc9f5ecf33ee5082f7 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-dea2ba6e72df45cc9f5ecf33ee5082f72025-01-13T15:29:43ZengWileyAdvanced Science2198-38442025-01-01122n/an/a10.1002/advs.202411702Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst AnglesMeng Lyu0Junyan Liu1Jianlei Shen2Shen Zhang3Yang Liu4Jinying Yang5Yibo Wang6Yiting Feng7Binbin Wang8Hongxiang Wei9Enke Liu10Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaKey Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & Research Institute of Materials ScienceShanxi Normal UniversityTaiyuan030000ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaBeijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijing100190ChinaAbstract The large anomalous Nernst effect in magnetic Weyl semimetals is one of the most intriguing transport phenomena, which draws significant attention for its potential applications in topological thermoelectrics. Despite frequent reports of substantial anomalous Nernst conductivity (ANC), methods to optimize Nernst thermoelectrics remain limited. The research reveals that the magnitude of the ANC is directly related to the sum of the anomalous Nernst and Hall angles. While the sign of the anomalous Hall angle is relatively stable in a certain material, the sign of the anomalous Nernst angle can be intrinsically tuned. Therefore, the ANC can be effectively optimized by regulating these angles to work in concert. This finding is verified by experimental modulation from iron‐doped magnetic topological material Co3Sn2S2. Additionally, a robust TlnT scaling law of the ANC over the temperature range of 40 to 140 K is observed in all studied samples, suggesting an intrinsic origin of the ANC. Considering the common opposite sign of the anomalous Nernst and Hall angles in many magnetic topological materials, the research offers an applicable scheme for optimizing the Nernst thermoelectrics.https://doi.org/10.1002/advs.202411702anomalous Hall effectanomalous Nernst effectmagnetic topological materialsNernst thermoelectricstopological bands |
| spellingShingle | Meng Lyu Junyan Liu Jianlei Shen Shen Zhang Yang Liu Jinying Yang Yibo Wang Yiting Feng Binbin Wang Hongxiang Wei Enke Liu Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles Advanced Science anomalous Hall effect anomalous Nernst effect magnetic topological materials Nernst thermoelectrics topological bands |
| title | Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles |
| title_full | Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles |
| title_fullStr | Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles |
| title_full_unstemmed | Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles |
| title_short | Modulation of the Nernst Thermoelectrics by Regulating the Anomalous Hall and Nernst Angles |
| title_sort | modulation of the nernst thermoelectrics by regulating the anomalous hall and nernst angles |
| topic | anomalous Hall effect anomalous Nernst effect magnetic topological materials Nernst thermoelectrics topological bands |
| url | https://doi.org/10.1002/advs.202411702 |
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