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

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

doi:10.1103/PhysRevB.93.121105

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

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

Physics

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70 Scopus citations

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 kz≈π/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.

Original language	English (US)
Article number	121105
Journal	Physical Review B
Volume	93
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevB.93.121105
State	Published - Mar 11 2016

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.93.121105

Cite this

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title = "Quantum oscillations and the Fermi surface topology of the Weyl semimetal NbP",

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 kz≈π/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.",

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AU - Klotz, J.

AU - Wu, Shu Chun

AU - Shekhar, Chandra

AU - Sun, Yan

AU - Schmidt, Marcus

AU - Nicklas, Michael

AU - Baenitz, Michael

AU - Uhlarz, M.

AU - Wosnitza, J.

AU - Felser, Claudia

AU - Yan, Binghai

PY - 2016/3/11

Y1 - 2016/3/11

N2 - 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 kz≈π/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.

AB - 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 kz≈π/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.

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

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