skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fermi surface of the Weyl type-II metallic candidate WP 2

Journal Article · · Physical Review B
 [1];  [2];  [1];  [1];  [1];  [3];  [4];  [4];  [2];  [1]
  1. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  2. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab); Florida State Univ., Tallahassee, FL (United States). Dept. of Physics
  3. Univ. of Texas at Dallas, Richardson, TX (United States). Dept. of Chemistry and Biochemistry
  4. Univ. of Texas at Dallas, Richardson, TX (United States). Dept. of Chemistry and Biochemistry

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 excellent agreement with the first-principle calculations when the electron- and hole-bands are shifted by 30 meV with respect to the Fermi level. This small discrepancy could have implications for the predicted topological character of this compound.

Research Organization:
Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
SC0002613; DMR-1157490
OSTI ID:
1399696
Alternate ID(s):
OSTI ID: 1389122
Journal Information:
Physical Review B, Vol. 96, Issue 12; Related Information: https://journals.aps.org/prb/supplemental/10.1103/PhysRevB.96.121108; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

References (27)

Reduction of WO3 by Phosphorus. journal January 1991
Spectroscopic evidence for a type II Weyl semimetallic state in MoTe2 journal July 2016
Large magnetoresistance in the type-II Weyl semimetal WP 2 journal September 2017
Observation of the Chiral-Anomaly-Induced Negative Magnetoresistance in 3D Weyl Semimetal TaAs journal August 2015
Chiral anomaly and transport in Weyl metals journal February 2015
Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides X P 2 ( X = Mo , W) journal August 2016
Type-II Weyl semimetals journal November 2015
Structured Weyl Points in Spin-Orbit Coupled Fermionic Superfluids journal December 2015
Large, non-saturating magnetoresistance in WTe2 journal September 2014
Magnetic Oscillations in Metals book October 2011
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials journal September 2009
Experimental observation of topological Fermi arcs in type-II Weyl semimetal MoTe2 journal September 2016
�ber Polyphosphide von Chrom, Molybd�n und Wolfram journal January 1983
Axial-Vector Vertex in Spinor Electrodynamics journal January 1969
MoTe 2 : A Type-II Weyl Topological Metal journal July 2016
Signatures of the Adler–Bell–Jackiw chiral anomaly in a Weyl fermion semimetal journal February 2016
Weyl Semimetal Phase in Noncentrosymmetric Transition-Metal Monophosphides journal March 2015
Discovery of a Weyl fermion semimetal and topological Fermi arcs journal July 2015
Prediction of an arc-tunable Weyl Fermion metallic state in MoxW1−xTe2 journal February 2016
Optimized norm-conserving Vanderbilt pseudopotentials journal August 2013
The Adler-Bell-Jackiw anomaly and Weyl fermions in a crystal journal November 1983
Topological response in Weyl semimetals and the chiral anomaly journal September 2012
Prediction of Weyl semimetal in orthorhombic MoTe 2 journal October 2015
A PCAC puzzle: π0→γγ in the σ-model journal March 1969
Fermi Arcs and Their Topological Character in the Candidate Type-II Weyl Semimetal MoTe 2 journal August 2016
Signature of type-II Weyl semimetal phase in MoTe2 journal January 2017
Synthesis of transition metal phosphides form their oxides using the chemical transport (CVT) method journal November 1990

Cited By (10)

Strong and Tunable Electrical Anisotropy in Type‐II Weyl Semimetal Candidate WP 2 with Broken Inversion Symmetry journal September 2019
Departure from the Wiedemann–Franz law in WP2 driven by mismatch in T-square resistivity prefactors journal December 2018
Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review journal January 2018
Magnetoresistance and valley degree of freedom in bulk bismuth journal July 2018
Detailed study of the Fermi surfaces of the type-II Dirac semimetallic candidates X Te 2 ( X =Pd, Pt) journal June 2018
Bulk Fermi surface of the Weyl type-II semimetallic candidate NbIrTe 4 journal May 2019
Classical Limit for Dirac Fermions with Modified Action in the Presence of a Black Hole journal October 2019
Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review text January 2018
Departure from the Wiedemann-Franz Law in WP$_2$ Driven by Mismatch in $T$-square Resistivity Prefactors text January 2018
Origin of the butterfly magnetoresistance in a Dirac nodal-line system text January 2019

Similar Records

Bulk Fermi surface of the Weyl type-II semimetallic candidate γ-MoTe2
Journal Article · Tue Oct 17 00:00:00 EDT 2017 · Physical Review B · OSTI ID:1399696

Large magnetoresistance in the type-II Weyl semimetal WP2
Journal Article · Mon Sep 11 00:00:00 EDT 2017 · Physical Review B · OSTI ID:1399696

Stable Weyl points, trivial surface states, and particle-hole compensation in WP2
Journal Article · Tue May 01 00:00:00 EDT 2018 · Physical Review B · OSTI ID:1399696