Regensburg 2022 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 25: Topological Semimetals
TT 25.3: Vortrag
Donnerstag, 8. September 2022, 10:15–10:30, H3
Thermoelectric properties in TaRhTe4, TaIrTe4 and MoxW1−xTe2 Weyl semimetals — •Mahdi Behnami1, Helena Reichlova1,3, Federico Caglieris1,2, Matthias Gillig1, Dmitriy Efremov1, Grigory Shipunov1, Saicharan Aswartham1, Ochkan Kyrylo1, Joseph Dufouleur1, and Bernd Büchner1,3 — 1IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany — 2SPIN Consiglio Nazionale delle Ricerche — 3Technische Universit at Dresden, 01062 Dresden, German
Magneto- and thermo transport are the key properties of metals that not only can be used to study the electronic bands [1] but also have potential applications for heat harvesting. Here we report our results on the thermoelectric properties of Weyl semimetals TaRhTe4, TaIrTe4 and MoxW1−xTe2 [2,3,4]. All of these materials show an anomaly in the Nernst and Seebeck effects, while no anomaly can be seen in the standard magnetotransport. We discuss the origin of this anomaly and compare the results obtained with those for two compounds from the same family of materials, WTe2 and MoTe2.
[1] J. Noky et al., Phys. Rev. B 98, 241106 (2018)
[2] E. Haubold et al. Phys. Rev. B 95, 241108 (2017)
[3] K. Koepernik et al. Phys. Rev. B 93, 201101 (2016)
[4] G. Shipunov et al., J. Phys. Chem. Lett. 12, 28, 67306735 (2021)