Fermi surface of the Weyl type-II metallic candidate WP2

Abstract

Weyl type-II fermions are massless quasiparticles that obey the Weyl equation and which are predicted to occur at the boundary between electron- and hole-pockets in certain semi-metals, i.e. the (W,Mo)(Te,P)${}_2$ compounds. Here, we present a study of the Fermi-surface of WP${}_2$ \emph{via} the Shubnikov-de Haas (SdH) effect. Compared to other semi-metals WP${}_2$ exhibits a very low residual resistivity, i.e. ${\rho }_0\simeq 10$ n$\Omega$cm, which leads to perhaps the largest non-saturating magneto-resistivity $(\rho (H))$ reported for any compound. For the samples displaying the smallest ${\rho }_0$, $\rho (H)$ is observed to increase by a factor of $2.5\times 10^7$ $\%$ under ${\mu }_{0}H=35$ T at $T=0.35$ K. The angular dependence of the SdH frequencies is found to be in very good agreement with the first-principle calculations when the electron- and hole-bands are slightly shifted with respect to the Fermi level, thus supporting the existence of underlying Weyl type-II points in WP${}_2$.

arXiv comment6 pages, 4 figures, supplementary information not included

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• Departure from the Wiedemann-Franz Law in WP${}_2$ Driven by Mismatch in $T$-square Resistivity Prefactors
• A new noncollinear ferromagnetic Weyl semimetal with anisotropic anomalous Hall effect
• Bulk Fermi-surface of the Weyl type-II semi-metallic candidate MoTe2
• Detailed study on the Fermi surfaces of the type-II Dirac semimetallic candidates PdTe2 and PtTe2
• Extremely large magnetoresistance in topologically trivial semimetal $\alpha$-WP${}_2$
• Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review
• Large magnetoresistance in type-II Weyl semimetal WP${}_2$
• Microscopic Origins of Hydrodynamic Transport in Type-II Weyl Semimetal WP${}_2$
• Evidence for dominant phonon-electron scattering in Weyl semimetal WP${}_2$
• Magnetoresistance and valley degree of freedom in bulk bismuth
• Magnetoresistance of semi-metals: the case of antimony
• Linear and quadratic magnetoresistance in the semimetal SiP2
• Extremely large magnetoresistance from electron-hole compensation in the nodal loop semimetal ZrP${}_2$
• Magnetotransport properties of MoP${}_2$
• Bulk Fermi surface of the type-II Weyl semimetal candidate NbIrTe${}_4$
• Stable Weyl points, trivial surface states and particle-hole compensation in WP2
• Importance of electron correlations in understanding the photo-electron spectroscopy and the Weyl character of MoTe${}_2$
• Record-high Mobility and Extreme Magnetoresistance on Kagome-lattice in Compensated Semimetal Ni3In2S2
• Origin of the butterfly magnetoresistance in a Dirac nodal-line system
• Sondheimer oscillations as a probe of non-ohmic flow in type-II Weyl semimetal WP${}_2$
• Strong and Tunable Electrical-Anisotropy in Type-II Weyl Semimetal Candidate WP2 with Broken Inversion Symmetry
• Analogies between the Black Hole Interior and the Type II Weyl Semimetals
• Butterfly-like anisotropic magnetoresistance and angle-dependent Berry phase in Type-II Weyl semimetal WP2
• Anisotropic positive linear and sub-linear magnetoresistivity in the cubic type-II Dirac metal Pd${}_3$In${}_7$
• Topological Type-II Dirac Fermions Approaching the Fermi Level in a Transition Metal Dichalcogenide NiTe2
• The type II Weyl semimetals at low temperatures: chiral anomaly, elastic deformations, zero sound
• Electronic thermal resistivity and quasi-particle collision cross-section in semi-metals
• SrPd, a candidate material with extremely large magnetoresistance
• Two-dimensional parabolic Dirac system in the presence of non-magnetic and magnetic impurities
• Lorenz ratio of an impure compensated metal in the degenerate Fermi liquid regime