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Magnetotransport and de Haas-van Alphen measurements in the type-II Weyl semimetal TaIrTe4

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Khim,  Seunghyun
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Khim, S., Koepernik, K., Efremov, D. V., Klotz, J., Foerster, T., Wosnitza, J., et al. (2016). Magnetotransport and de Haas-van Alphen measurements in the type-II Weyl semimetal TaIrTe4. Physical Review B, 94(16): 165145, pp. 1-5. doi:10.1103/PhysRevB.94.165145.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002B-BC98-A
Abstract
The layered ternary compound TaIrTe4 has been predicted to be a type-II Weyl semimetal with only four Weyl points just above the Fermi energy. Performing magnetotransport measurements on this material we find that the resistivity does not saturate for fields up to 70 T and follows a rho similar to B-1.5 dependence. Angular-dependent de Haas-van Alphen measurements reveal four distinct frequencies. Analyzing these magnetic quantum oscillations by use of density functional theory calculations we establish that in TaIrTe4 the Weyl points are located merely similar to 40-50 meV above the chemical potential.