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

Title: Phonon-induced topological transition to a type-II Weyl semimetal

Journal Article · · Physical Review B
 [1];  [2];  [2];  [3];  [2];  [2];  [4]
  1. Ames Lab., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
  3. Federal Inst. of Technology, Zurich (Switzerland). Theoretical Physics and Station Q Zurich
  4. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy; Iowa State Univ., Ames, IA (United States). Dept. of Materials Science and Engineering

Given the importance of crystal symmetry for the emergence of topological quantum states, we have studied here, as exemplified in NbNiTe2, the interplay of crystal symmetry, atomic displacements (lattice vibration), band degeneracy, and band topology. For the NbNiTe2 structure in space-group 53 (Pmna)$$-$$ having an inversion center arising from two glide planes and one mirror plane with a two-fold rotation and screw axis$$-$$a full gap opening exists between two band manifolds near the Fermi energy. Upon atomic displacements by optical phonons, the symmetry lowers to space-group 28 (Pma2), eliminating one glide plane along c, the associated rotation and screw axis, and the inversion center. As a result, 20 Weyl points emerge, including four type-IIWeyl points in the Γ-X direction at the boundary between a pair of adjacent electron and hole bands. Thus, optical phonons may offer control of the transition to a Weyl fermion state.

Research Organization:
Ames Lab., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1355401
Alternate ID(s):
OSTI ID: 1351125
Report Number(s):
IS-J-9230; PRBMDO; TRN: US1702601
Journal Information:
Physical Review B, Vol. 95, Issue 16; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

References (61)

Generalized Gradient Approximation Made Simple journal October 1996
Quick iterative scheme for the calculation of transfer matrices: application to Mo (100) journal May 1984
Temperature Effects in the Band Structure of Topological Insulators journal November 2016
Topological phase transitions in group IV-VI semiconductors by phonons journal September 2015
Spectroscopic evidence for a type II Weyl semimetallic state in MoTe2 journal July 2016
X-ray powder diffraction as a tool for facing twins: the case of the monoclinic niobium cobalt ditelluride and tantalum cobalt ditelluride phases journal October 1993
Projector augmented-wave method journal December 1994
Nodal-chain metals journal August 2016
Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides X P 2 ( X = Mo , W) journal August 2016
Maximally localized Wannier functions: Theory and applications journal October 2012
Type-II Weyl semimetals journal November 2015
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Surface states and topological invariants in three-dimensional topological insulators: Application to Bi1xSbx journal July 2008
Structured Weyl Points in Spin-Orbit Coupled Fermionic Superfluids journal December 2015
Simple scheme for surface-band calculations. II. The Green's function journal May 1981
Hourglass fermions journal April 2016
Van der Waals density functionals applied to solids journal May 2011
Discovery of a Weyl fermion state with Fermi arcs in niobium arsenide journal August 2015
Special points for Brillouin-zone integrations journal June 1976
A strongly robust type II Weyl fermion semimetal state in Ta 3 S 2 journal June 2016
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Maximally localized generalized Wannier functions for composite energy bands journal November 1997
Topological Crystalline Insulators journal March 2011
MoTe 2 : A Type-II Weyl Topological Metal journal July 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
Inhomogeneous Electron Gas journal November 1964
Phonon-Induced Topological Transitions and Crossovers in Dirac Materials journal January 2013
Van der Waals Density Functional for General Geometries journal June 2004
Semiempirical GGA-type density functional constructed with a long-range dispersion correction journal January 2006
Temperature-Induced Topological Phase Transitions: Promoted versus Suppressed Nontrivial Topology journal December 2016
Simple scheme for surface-band calculations. I journal May 1981
Topological crystalline insulators in the SnTe material class journal January 2012
Isolated and Condensed Ta2Ni2 Clusters in the Layered Tellurides Ta2Ni2Te4 and Ta2Ni3Te5 journal July 1991
Observation of Weyl nodes in TaAs journal August 2015
TaIrTe 4 : A ternary type-II Weyl semimetal journal May 2016
van der Waals Stacking-Induced Topological Phase Transition in Layered Ternary Transition Metal Chalcogenides journal December 2016
Maximally localized Wannier functions for entangled energy bands journal December 2001
Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates journal May 2011
Highly convergent schemes for the calculation of bulk and surface Green functions journal April 1985
Phonon-induced topological insulation journal May 2014
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
A Weyl Fermion semimetal with surface Fermi arcs in the transition metal monopnictide TaAs class journal June 2015
High-resolution X-ray luminescence extension imaging journal February 2021
Electronic structure of AlFeN films exhibiting crystallographic orientation change from c- to a-axis with Fe concentrations and annealing effect journal February 2020
Topological Crystalline Insulators text January 2010
Van der Waals density functionals applied to solids text January 2011
Maximally localized Wannier functions: Theory and applications text January 2011
Structured Weyl Points in Spin-Orbit Coupled Fermionic Superfluids text January 2014
Weyl semimetal phase in non-centrosymmetric transition metal monophosphides text January 2015
Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs text January 2015
Experimental discovery of Weyl semimetal TaAs text January 2015
Observation of Weyl nodes in TaAs text January 2015
Type-II Weyl Semimetals text January 2015
TaIrTe4 a ternary Type-II Weyl semi-metal text January 2016
Spectroscopic evidence for type II Weyl semimetal state in MoTe2 text January 2016
Van der Waals Stacking Induced Topological Phase Transition in Layered Ternary Transition Metal Chalcogenides text January 2016
Temperature effects in the band structure of topological insulators text January 2016
Temperature-induced topological phase transitions: promoted vs. suppressed non-trivial topology text January 2016
Maximally-localized Wannier functions for entangled energy bands text January 2001
Ab initio calculation of the anomalous Hall conductivity by Wannier interpolation text January 2006

Cited By (5)

Type-II Dirac semimetal stabilized by electron-phonon coupling journal December 2017
Floquet analysis of excitations in materials journal October 2019
Ideal type-II Weyl phonons in wurtzite CuI journal August 2019
Orthorhombic to monoclinic phase transition in NbNiTe 2 journal October 2019
Floquet analysis of excitations in materials text January 2019