Impact of Spin-Entropy on the Thermoelectric Properties of a 2D MagnetClick to copy article linkArticle link copied!
- Alessandra CanettaAlessandra CanettaInstitute of Condensed Matter and Nanosciences, Université Catholique de Louvain (UCLouvain), 1348 Louvain-la-Neuve, BelgiumMore by Alessandra Canetta
- Serhii VolosheniukSerhii VolosheniukKavli Institute of Nanoscience, Delft University of Technology, 2628CJ Delft, The NetherlandsMore by Serhii Volosheniuk
- Sayooj SatheeshSayooj SatheeshMax-Planck-Institut für Festkörperforschung, D-70569 Stuttgart, GermanyMore by Sayooj Satheesh
- José Pedro Alvarinhas BatistaJosé Pedro Alvarinhas BatistaNanomat/Q-MAT/ and European Theoretical Spectroscopy Facility, Université de Liège, B-4000, Liège, BelgiumMore by José Pedro Alvarinhas Batista
- Aloïs CastellanoAloïs CastellanoNanomat/Q-MAT/ and European Theoretical Spectroscopy Facility, Université de Liège, B-4000, Liège, BelgiumMore by Aloïs Castellano
- Riccardo ConteRiccardo ConteKavli Institute of Nanoscience, Delft University of Technology, 2628CJ Delft, The NetherlandsMore by Riccardo Conte
- Daniel George ChicaDaniel George ChicaDepartment of Chemistry, Columbia University, New York, New York 10027, United StatesMore by Daniel George Chica
- Kenji WatanabeKenji WatanabeResearch Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, JapanMore by Kenji Watanabe
- Takashi TaniguchiTakashi TaniguchiResearch Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, JapanMore by Takashi Taniguchi
- Xavier RoyXavier RoyDepartment of Chemistry, Columbia University, New York, New York 10027, United StatesMore by Xavier Roy
- Herre S. J. van der ZantHerre S. J. van der ZantKavli Institute of Nanoscience, Delft University of Technology, 2628CJ Delft, The NetherlandsMore by Herre S. J. van der Zant
- Marko BurghardMarko BurghardMax-Planck-Institut für Festkörperforschung, D-70569 Stuttgart, GermanyMore by Marko Burghard
- Matthieu Jean VerstraeteMatthieu Jean VerstraeteNanomat/Q-MAT/ and European Theoretical Spectroscopy Facility, Université de Liège, B-4000, Liège, BelgiumITP, Physics Department, Utrecht University, 3508 TA Utrecht, The NetherlandsMore by Matthieu Jean Verstraete
- Pascal Gehring*Pascal Gehring*E-mail: [email protected]Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain (UCLouvain), 1348 Louvain-la-Neuve, BelgiumMore by Pascal Gehring
Abstract
Heat-to-charge conversion efficiency of thermoelectric materials is closely linked to the entropy per charge carrier. Thus, magnetic materials are promising building blocks for highly efficient energy harvesters as their carrier entropy is boosted by a spin degree of freedom. In this work, we investigate how this spin-entropy impacts heat-to-charge conversion in the A-type antiferromagnet CrSBr. We perform simultaneous measurements of electrical conductance and thermocurrent while changing magnetic order using the temperature and magnetic field as tuning parameters. We find a strong enhancement of the thermoelectric power factor at around the Néel temperature. We further reveal that the power factor at low temperatures can be increased by up to 600% upon applying a magnetic field. Our results demonstrate that the thermoelectric properties of 2D magnets can be optimized by exploiting the sizable impact of spin-entropy and confirm thermoelectric measurements as a sensitive tool to investigate subtle magnetic phase transitions in low-dimensional magnets.
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This article is cited by 2 publications.
- Jiayuan Zhou, Yuhan Yang, Shasha Li, Yeqin Li, Kaipeng Ni, Ying Li, Aljoscha Söll, Wenshuai Gao, Xuegang Chen, Yuxuan Jiang, Liang Li, Yong Yan, Chunguang Hu, Wanfu Shen, Zdenek Sofer, Penglai Gong, Mingliang Tian, Xue Liu. Polarization-Sensitive Photothermoelectric Response Based on In-Plane Anisotropic Antiferromagnetic Semiconductor CrSBr. ACS Photonics 2025, Article ASAP.
- Temzini Rachida, Bourourou Yahia, Boulebda Hichem, Bentria El Tayeb, Maabed Said, Belli Ayoub, Rached Youcef, Bouchenafa Mohammed. Half-metallic ferromagnetism and thermoelectric performance of PdFeCrZ (Z = Al, Si, Sb, Ge) Quaternary Heusler alloys for thermo-spintronic applications. Journal of Magnetism and Magnetic Materials 2025, 624 , 173072. https://doi.org/10.1016/j.jmmm.2025.173072
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