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A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class

Journal Article · · Nature Communications
DOI:https://doi.org/10.1038/ncomms8373· OSTI ID:1623981
 [1];  [2];  [3];  [4];  [4];  [5];  [3];  [6];  [7];  [8];  [9];  [10];  [4];  [11]
  1. National Univ. of Singapore, Singapore (Mongolia). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore, Singapore (Mongolia). Dept. of Physics; DOE/OSTI
  2. Princeton Univ., NJ (United States). Dept. of Physics, Joseph Henry Laboratory; Princeton Univ., NJ (United States). Princeton Center for Complex Materials
  3. Princeton Univ., NJ (United States). Dept. of Physics, Joseph Henry Laboratory; Princeton Univ., NJ (United States). Princeton Center for Complex Materials
  4. National Univ. of Singapore, Singapore (Mongolia). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore, Singapore (Mongolia). Dept. of Physics
  5. National Univ. of Singapore, Singapore (Mongolia). Centre for Advanced 2D Materials and Graphene Research Centre; National Univ. of Singapore, Singapore (Mongolia). Dept. of Physics; Northeastern Univ., Boston, MA (United States). Dept. of Physics
  6. Princeton Univ., NJ (United States). Dept. of Physics, Joseph Henry Laboratory
  7. Princeton Univ., NJ (United States). Dept. of Physics, Joseph Henry Laboratory; Princeton Univ., NJ (United States). Princeton Center for Complex Materials; Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Condensed Matter and Magnet Science Group
  8. Peking Univ., Beijing (China). ICQM, School of Physics
  9. Peking Univ., Beijing (China). ICQM, School of Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China)
  10. Northeastern Univ., Boston, MA (United States). Dept. of Physics
  11. Princeton Univ., NJ (United States). Dept. of Physics, Joseph Henry Laboratory; Princeton Univ., NJ (United States). Princeton Center for Complex Materials; Princeton Univ., NJ (United States). Princeton Center for Complex Materials

Weyl fermions are massless chiral fermions that play an important role in quantum field theory but have never been observed as fundamental particles. A Weyl semimetal is an unusual crystal that hosts Weyl fermions as quasiparticle excitations and features Fermi arcs on its surface. Such a semimetal not only provides a condensed matter realization of the anomalies in quantum field theories but also demonstrates the topological classification beyond the gapped topological insulators. Here, we identify a topological Weyl semimetal state in the transition metal monopnictide materials class. Our first-principles calculations on TaAs reveal its bulk Weyl fermion cones and surface Fermi arcs. Our results show that in the TaAs-type materials the Weyl semimetal state does not depend on fine-tuning of chemical composition or magnetic order, which opens the door for the experimental realization of Weyl semimetals and Fermi arc surface states in real materials.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Princeton Univ., NJ (United States); Northeastern Univ., Boston, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; FG02-05ER46200; FG02-07ER46352
OSTI ID:
1623981
Journal Information:
Nature Communications, Journal Name: Nature Communications Journal Issue: 1 Vol. 6; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Orbital effect and weak localization in the longitudinal magnetoresistance of Weyl semimetals NbP, NbAs, TaP, and TaAs journal March 2020
Anomalous conductance scaling in strained Weyl semimetals journal November 2019
Difference frequency generation in topological semimetals journal January 2020
Nonlocal annihilation of Weyl fermions in correlated systems journal January 2020
Optoelectronic response of the type-I Weyl semimetals TaAs and NbAs from first principles journal January 2020
Modular Arithmetic with Nodal Lines: Drumhead Surface States in ZrSiTe journal February 2020
Experimental Discovery of Weyl Semimetal TaAs journal July 2015
Current at a Distance and Resonant Transparency in Weyl Semimetals journal December 2015
Rare-Region-Induced Avoided Quantum Criticality in Disordered Three-Dimensional Dirac and Weyl Semimetals journal June 2016
Triple Point Topological Metals journal July 2016
Inhomogeneous Weyl and Dirac Semimetals: Transport in Axial Magnetic Fields and Fermi Arc Surface States from Pseudo-Landau Levels journal December 2016
Heavy Weyl Fermion State in CeRu 4 Sn 6 journal March 2017
Symmetric Fermion Mass Generation as Deconfined Quantum Criticality journal February 2018
Experimental Observation of Dirac Nodal Links in Centrosymmetric Semimetal TiB 2 journal August 2018
Diagnosis for Nonmagnetic Topological Semimetals in the Absence of Spin-Orbital Coupling journal September 2018
Symmetry Indicators and Anomalous Surface States of Topological Crystalline Insulators journal September 2018
From Dirac Semimetals to Topological Phases in Three Dimensions: A Coupled-Wire Construction journal February 2019
Hear the Sound of Weyl Fermions journal June 2019
Classification of topological quantum matter with symmetries journal August 2016
Weyl and Dirac semimetals in three-dimensional solids journal January 2018
Experimental discovery of a topological Weyl semimetal state in TaP journal November 2015
Topological materials discovery by large-order symmetry indicators journal March 2019
Spin fluctuation induced Weyl semimetal state in the paramagnetic phase of EuCd 2 As 2 journal July 2019
Quasiparticle interference of the Fermi arcs and surface-bulk connectivity of a Weyl semimetal journal March 2016
Magnetic Weyl semimetal phase in a Kagomé crystal journal September 2019
Review of Electron-Electron Interaction Effects in Planar Dirac Liquids journal August 2019
Pairing in doped inversion-symmetric Weyl semimetals: a finite temperature analysis from Thouless criterion journal July 2017
Weyl systems: anomalous transport normally explained journal August 2019
Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals journal September 2019
Observation of Weyl nodes and Fermi arcs in tantalum phosphide text January 2016
Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs text January 2015
Axial anomaly and longitudinal magnetoresistance of a generic three dimensional metal text January 2015
Many-body effects and ultraviolet renormalization in three-dimensional Dirac materials text January 2015
Raman study of lattice dynamics in Weyl semimetal TaAs text January 2015
Quantum nonlinear Hall effect induced by Berry curvature dipole in time-reversal invariant materials text January 2015
Torsional chiral magnetic effect in Weyl semimetal with topological defect text January 2015
Magnetic susceptibility in three-dimensional nodal semimetals text January 2015
Spin polarization and texture of the Fermi arcs in the Weyl Fermion semimetal TaAs text January 2015
Dielectric response and novel electromagnetic modes in three-dimensional Dirac semimetal films text January 2016
Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals text January 2016
Two-Dimensional Node-Line Semimetals in a Honeycomb-Kagome Lattice text January 2016
Momentum-space structure of surface states in a topological semimetal with a nexus point of Dirac lines text January 2016
Topological Semimetals with Triply Degenerate Nodal Points in θ-phase Tantalum Nitride text January 2016
Observation of Dirac-Like Semi-Metallic Phase in NdSb text January 2016
Type-II Weyl cone transitions in driven semimetals text January 2016
Coexistence of Weyl Physics and Planar Defects in Semimetals TaP and TaAs text January 2016
Three-Dimensional Majorana Fermions in Chiral Superconductors text January 2016
From Nodal Chain Semimetal To Weyl Semimetal in HfC text January 2017
Antiferromagnetic Topological Nodal Line Semimetals text January 2017
Weyl and Dirac Semimetals in Three Dimensional Solids text January 2017
Multiple types of topological fermions in transition metal silicides text January 2017
The semiclassical theory of anomalous transport in type-II topological Weyl semimetals text January 2017
Kondo Effect with Weyl Semimetal Fermi Arcs text January 2017
Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review text January 2018
Negative thermal magnetoresistivity as a signature of chiral anomaly in Weyl superconductors text January 2018
Optical Signatures of Dirac Nodal-lines in NbAs$_2$ text January 2018
Three-dimensional Chiral Lattice Fermion in Floquet Systems text January 2018
Hear the Sound of Weyl Fermions text January 2019
Magnetic Weyl Semimetal Phase in a Kagome Crystal text January 2019
Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals preprint January 2019

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