Type-II Weyl semimetals
- A. Soluyanov, D. Gresch, B. Bernevig
- PhysicsNature
- 6 July 2015
This work proposes the existence of a previously overlooked type of Weyl fermion that emerges at the boundary between electron and hole pockets in a new phase of matter and discovers a type-II Weyl point, which is still a protected crossing, but appears at the contact of electron and Hole pockets in type- II Weyl semimetals.
Computing topological invariants without inversion symmetry
- A. Soluyanov, D. Vanderbilt
- Mathematics
- 28 February 2011
We consider the problem of calculating the weak and strong topological indices in noncentrosymmetric time-reversal ($\mathcal{T}$) invariant insulators. In 2D we use a gauge corresponding to hybrid…
MoTe_{2}: A Type-II Weyl Topological Metal.
- Zhijun Wang, D. Gresch, B. Bernevig
- PhysicsPhysical Review Letters
- 23 November 2015
With no strain, the number of observable surface Fermi arcs in this material is 2-the smallest number of arcs consistent with time-reversal symmetry, opening a wide range of possible experimental realizations of different topological semimetal phases.
Fermi Arcs and Their Topological Character in the Candidate Type-II Weyl Semimetal MoTe 2
- A. Tamai, Q. Wu, F. Baumberger
- Physics
- 27 April 2016
Researchers provide new evidence for the existence of type-II Weyl semimetals, which would be both conducting and insulating in different spatial directions.
Non-Abelian band topology in noninteracting metals
- Quansheng Wu, A. Soluyanov, T. Bzdušek
- PhysicsScience
- 21 August 2018
Non-Abelian topological charges that characterize line nodes inside the momentum space of crystalline metals with space-time inversion and weak spin-orbit coupling are introduced and it is shown that these are quaternion charges, similar to those describing disclinations in biaxial nematics.
Nodal-chain metals
- T. Bzdušek, Quansheng Wu, A. Rüegg, M. Sigrist, A. Soluyanov
- PhysicsNature
- 11 April 2016
It is argued that the presence of the nodal-chain fermions will result in anomalous magnetotransport properties, distinct from those of materials exhibiting previously known excitations.
WannierTools: An open-source software package for novel topological materials
- Quansheng Wu, ShengNan Zhang, Haifeng Song, M. Troyer, A. Soluyanov
- PhysicsComputer Physics Communications
- 22 March 2017
Triple Point Topological Metals
- Ziming Zhu, G. W. Winkler, Quansheng Wu, Ju Li, A. Soluyanov
- Physics
- 16 May 2016
Quasiparticles with no direct analogs in the standard model have been recently revealed in experiments. Researchers theoretically analyze the physical properties of triple point fermions, which can…
Z2Pack: Numerical Implementation of Hybrid Wannier Centers for Identifying Topological Materials
- D. Gresch, G. Autès, A. Soluyanov
- Materials Science
- 27 October 2016
The intense theoretical and experimental interest in topological insulators and semimetals has established band structure topology as a fundamental material property. Consequently, identifying band…
Wannier representation of Z 2 topological insulators
- A. Soluyanov, D. Vanderbilt
- Physics
- 16 March 2010
We consider the problem of constructing Wannier functions for ${\mathbb{Z}}_{2}$ topological insulators in two dimensions. It is well known that there is a topological obstruction to the construction…
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