Zero-Field Nernst Effect in a Ferromagnetic Kagome-Lattice Weyl-Semimetal Co3Sn2S2

Guin SN, Vir P, Zhang Y, Kumar N, Watzman SJ, Fu C, Liu E, Manna K, Schnelle W, Gooth J, Shekhar C, Sun Y, Felser C (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Advanced Materials Wiley

Book Volume: 31

Article Number: 1806622

Journal Issue: 25

DOI: 10.1002/adma.201806622

Abstract

The discovery of magnetic topological semimetals has recently attracted significant attention in the field of topology and thermoelectrics. In a thermoelectric device based on the Nernst geometry, an external magnet is required as an integral part. Reported is a zero-field Nernst effect in a newly discovered hard-ferromagnetic kagome-lattice Weyl-semimetal Co3Sn2S2. A maximum Nernst thermopower of ≈3 µV K−1 at 80 K in zero field is achieved in this magnetic Weyl-semimetal. The results demonstrate the possibility of application of topological hard magnetic semimetals for low-power thermoelectric devices based on the Nernst effect and are thus valuable for the comprehensive understanding of transport properties in this class of materials.

Involved external institutions

Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE) University of Cincinnati US United States (USA) (US)

How to cite

APA:

Guin, S.N., Vir, P., Zhang, Y., Kumar, N., Watzman, S.J., Fu, C.,... Felser, C. (2019). Zero-Field Nernst Effect in a Ferromagnetic Kagome-Lattice Weyl-Semimetal Co3Sn2S2. Advanced Materials, 31(25). https://doi.org/10.1002/adma.201806622

MLA:

Guin, Satya N., et al. "Zero-Field Nernst Effect in a Ferromagnetic Kagome-Lattice Weyl-Semimetal Co3Sn2S2." Advanced Materials 31.25 (2019).

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