Quantum oscillations and the Fermi surface topology of the Weyl semimetal NbP

Klotz, J.; Wu, Shu-Chun; Shekhar, Chandra; Sun, Yan; Schmidt, Marcus; Nicklas, Michael; Baenitz, Michael; Uhlarz, M.; Wosnitza, J.; Felser, Claudia; Yan, Binghai

doi:10.1103/PhysRevB.93.121105

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Quantum oscillations and the Fermi surface topology of the Weyl semimetal NbP

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Yan, Binghai
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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https://journals.aps.org/prb/abstract/10.1103/PhysRevB.93.121105
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Citation

Klotz, J., Wu, S.-C., Shekhar, C., Sun, Y., Schmidt, M., Nicklas, M., et al. (2016). Quantum oscillations and the Fermi surface topology of the Weyl semimetal NbP. Physical Review B, 93(12): 121105. doi:10.1103/PhysRevB.93.121105.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-39E3-5

Abstract

The Weyl semimetal NbP was found to exhibit topological Fermi arcs and exotic magnetotransport properties. Here, we report on magnetic quantum-oscillation measurements on NbP and construct the three-dimensional Fermi surface with the help of band-structure calculations. We reveal a pair of spin-orbit-split electron pockets at the Fermi energy and a similar pair of hole pockets, all of which are strongly anisotropic. The Weyl points that are located in the k(z) approximate to pi/c plane are found to exist 5 meV above the Fermi energy. Therefore, we predict that the chiral anomaly effect can be realized in NbP by electron doping to drive the Fermi energy to the Weyl points.