Alexey A. Soluyanov

Computing topological invariants without inversion symmetry

We consider the problem of calculating the weak and strong topological indices in noncentrosymmetric time-reversal (

Nodal-chain metals

\mathcal{T}

Wannier representation of

) invariant insulators. In 2D we use a gauge corresponding to hybrid Wannier functions that are maximally localized in one dimension. Although this gauge is not smoothly defined on the two torus, it respects the

Z_2

\mathcal{T}

topological insulators

symmetry of the system and allows for a definition of the

Triple Point Topological Metals

{\mathbb{Z}}_{2}

Observation of large topologically trivial Fermi arcs in the candidate type-II Weyl semimetal WT e 2

invariant in terms of time-reversal polarization. In 3D we apply the 2D approach to

Robust Type-II Weyl Semimetal Phase in Transition Metal Diphosphides X P 2 ( X = Mo , W)

\mathcal{T}

Z2Pack: Numerical Implementation of Hybrid Wannier Centers for Identifying Topological Materials

-invariant planes. We illustrate the method with first-principles calculations on GeTe and on HgTe under

Fermi Arcs and Their Topological Character in the Candidate Type-II Weyl Semimetal MoTe 2

[001]