ErMn6Sn6: A Promising Kagome Antiferromagnetic Candidate for Room‐Temperature Nernst Effect‐Based Thermoelectrics
Year: 2025
Type: article
Abstract: The Nernst effect, the generation of a tranverse electric voltage in the presence of longitudinal thermal gradient, has garnered significant attention in the realm of magnetic topological materials due to its superior potential for thermoelectric applications. In this work, the electronic and thermoelectric transport properties of a Kagome magnet ErMn6Sn6 are investigated, a compound showing an incommensurate antiferromagnetic phase followed by a ferrimagnetic phase transition upon cooling. It is shown that in the antiferromagnetic phase ErMn6Sn6 exhibits both topological Nernst effect and anomalous Nernst effect, analogous to the electric Hall effects, with the Nernst coefficient reaching 1.71 µV K⁻¹ at 300 K and 3 T. This value surpasses that of most of previously reported state‐of‐the‐art canted antiferromagnetic materials and is comparable to recently reported other members of RMn6Sn6 (R = rare‐earth, Y, Lu, Sc) compounds, which makes ErMn6Sn6 a promising candidate for advancing the development of Nernst effect‐based thermoelectric devices.
Source: Advanced Functional Materials
Institution: Michigan State University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,790
Awards: NOVEL QUANTUM PHENOMENA IN GEOMETRICALLY FRUSTRATED MAGNETS NEAR THE METAL-INSULATOR PHASE BOUNDARY, G7397921735, NOVEL QUANTUM PHENOMENA IN GEOMETRICALLY FRUSTRATED MAGNETS NEAR THE METAL-INSULATOR PHASE BOUNDARY, A tango between magnons and phonons in 2D van der Waals insulating magnets, G901098126
OpenAlex ID: W4409622979