Topological Materials: Weyl Semimetals

By Binghai Yan, Claudia Felser. 2016

1,560 citations recorded by the source corpus.

Topological insulators and topological semimetals are both new classes of quantum materials, which are characterized by surface states induced by the topology of the bulk band structure. Topological Dirac or Weyl semimetals show linear dispersion around nodes, termed the Dirac or Weyl points, as the three-dimensional analog of graphene. We review the basic concepts and compare these topological states of matter from the materials perspective with a special focus on Weyl semimetals. The TaAs family is the ideal materials class to introduce the signatures of Weyl points in a pedagogical way, from Fermi arcs to the chiral magnetotransport properties, followed by hunting for the type-II Weyl semimetals in WTe2, MoTe2, and related compounds. Many materials are members of big families, and topological properties can be tuned. As one example, we introduce the multifunctional topological materials, Heusler compounds, in which both topological insulators and magnetic Weyl semimetals can be found. Instead of a comp...

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/23e0cfa66fa4682a22ba5b38b273178f7301ddf8

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

Citations in the corpus

Kitaev materials (2017, background): “On the theoretical side, topology is found to play a crucial role in these systems – an observation which, in the weakly correlated regime, has lead to the discovery of the topological band insulator [2, 3] and subsequently its metallic cousin, the Weyl semi-metal [4, 5].”
Weyl and Dirac semimetals in three-dimensional solids (2017, background): “…(Burkov, 2017, 2016; Hasan et al., 2017, 2015; Jia et al., 2016; Syzranov and Radzihovsky, 2018; Šmejkal et al., 2017a; WitczakKrempa et al., 2014; Yan and Felser, 2017) and connections to related systems like nodal superconductors have been reviewed in Schnyder and Brydon, 2015; Vafek and…”
Light control with Weyl semimetals (2022, neutral): “[68, 69, 70, 71]; for material properties, see Ref.”
Topological Semimetals from First Principles (2018, background): “In this regard, we note that a number of excellent longer and shorter reviews already exist in the general area of gapless topological materials (37, 38, 39, 40, 41, 42, 26, 30, 43, 44, 45, 3, 31, 46, 47, 48, 49, 32).”