Effect of uniaxial stress on the electronic band structure of NbP

Abstract

The Weyl semimetal NbP exhibits a very small Fermi surface consisting of two electron and two hole pockets, whose fourfold degeneracy in $k$ space is tied to the rotational symmetry of the underlying tetragonal crystal lattice. By applying uniaxial stress, the crystal symmetry can be reduced, which successively leads to a degeneracy lifting of the Fermi-surface pockets. This is reflected by a splitting of the Shubnikov-de Haas frequencies when the magnetic field is aligned along the $c$ axis of the tetragonal lattice. In this study, we present the measurement of Shubnikov-de Haas oscillations of single-crystalline NbP samples under uniaxial tension, combined with state-of-the-art calculations of the electronic band structure. Our results show qualitative agreement between calculated and experimentally determined Shubnikov-de Haas frequencies, demonstrating the robustness of the band-structure calculations upon introducing strain. Furthermore, we predict a significant shift of the Weyl points with increasing uniaxial tension, allowing for an effective tuning to the Fermi level at only 0.8% of strain along the $a$ axis.

arXiv comment8 figures

References in corpus (32)

• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
• Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
• Extremely large magnetoresistance and ultrahigh mobility in the topological Weyl semimetal NbP
• Strong Peak in $T_c$ of Sr${}_2$RuO${}_4$ Under Uniaxial Pressure
• Experimental signatures of the mixed axial-gravitational anomaly in the Weyl semimetal NbP
• Topological surface states and Fermi arcs of the noncentrosymmetric Weyl semimetals TaAs, TaP, NbAs, and NbP
• Helicity protected ultrahigh mobility Weyl fermions in NbP
• Piezoelectric-based apparatus for strain tuning
• Criteria for directly detecting topological Fermi arcs in Weyl semimetals
• Fermi arc topology and interconnectivity in Weyl fermion semimetals TaAs, TaP, NbAs, and NbP
• Evidence for a strain tuned topological phase transition in ZrTe5
• Theoretical investigation of the evolution of the topological phase of Bi${}_2$Se${}_3$ under mechanical strain
• Atomic Scale Visualization of Quantum Interference on a Weyl Semimetal Surface by Scanning Tunneling Microscopy/Spectroscopy
• Direct Observation of Nonequivalent Fermi-Arc States of Opposite Surfaces in Noncentrosymmetric Weyl Semimetal NbP
• Quantum oscillations and the Fermi-surface topology of the Weyl semimetal NbP
• Quasi-particle interferences of the Weyl semimetals TaAs and NbP
• Pressure tuning the Fermi-surface topology of the Weyl semimetal NbP
• Towards Weyltronics: Realization of epitaxial NbP and TaP Weyl Semimetal thin films
• Strain-induced quantum topological phase transitions in Na3Bi
• Strain-induced topological insulator phase transition in HgSe
• Influence of tetragonal distortion on the topological electronic structure of the half-Heusler compound LaPtBi from first principles
• Optical conductivity of the Weyl semimetal NbP
• Phenomenal magneto-elastoresistance of WTe${}_2$: strain engineering of electronic and quantum transport properties
• Mirror protected Dirac fermions on a Weyl semimetal NbP surface
• Uncovering Weyl Fermions in the Quantum Limit of NbP
• Hidden type-II Weyl points in the Weyl semimetal NbP
• Reentrant Metallic Behavior in the Weyl Semimetal NbP
• Uniaxial Strain Induced Topological Phase Transition in Bismuth-Tellurohalide-Graphene Heterostructures
• Do Fourier analysis yield reliable amplitude of quantum oscillations?
• Tuning topology in thin films of topological insulators by strain gradients
• The de Haas van Alphen effect near a quantum critical end point in Sr_3Ru_2O_7

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