Weyl and Dirac semimetals in three-dimensional solids

NP Armitage, EJ Mele, A Vishwanath - Reviews of Modern Physics, 2018 - APS
Weyl and Dirac semimetals are three-dimensional phases of matter with gapless electronic
excitations that are protected by topology and symmetry. As three-dimensional analogs of …

Transport of topological semimetals

J Hu, SY Xu, N Ni, Z Mao - Annual Review of Materials Research, 2019 - annualreviews.org
Three-dimensional (3D) topological semimetals represent a new class of topological
matters. The study of this family of materials has been at the frontiers of condensed matter …

Quantum Hall effect based on Weyl orbits in Cd3As2

C Zhang, Y Zhang, X Yuan, S Lu, J Zhang, A Narayan… - Nature, 2019 - nature.com
Discovered decades ago, the quantum Hall effect remains one of the most studied
phenomena in condensed matter physics and is relevant for research areas such as …

Topological semimetals with triply degenerate nodal points in -phase tantalum nitride

H Weng, C Fang, Z Fang, X Dai - Physical Review B, 2016 - APS
Using first-principles calculation and symmetry analysis, we propose that θ-TaN is a
topological semimetal having a new type of point nodes, ie, triply degenerate nodal points …

Coexistence of Weyl fermion and massless triply degenerate nodal points

H Weng, C Fang, Z Fang, X Dai - Physical Review B, 2016 - APS
By using first-principles calculations, we propose that WC-type ZrTe is a new type of
topological semimetal (TSM). It has six pairs of chiral Weyl nodes in its first Brillouin zone …

Recent progress in the study of topological semimetals

A Bernevig, H Weng, Z Fang, X Dai - … of the Physical Society of Japan, 2018 - journals.jps.jp
The topological semimetal is a new, theoretically predicted and experimentally discovered,
topological state of matter. In one of its several realizations, the topological semimetal hosts …

Pseudo-electromagnetic fields in 3D topological semimetals

R Ilan, AG Grushin, DI Pikulin - Nature Reviews Physics, 2020 - nature.com
Dirac and Weyl semimetals react to position-dependent and time-dependent perturbations,
such as strain, as if subject to emergent electromagnetic fields, known as pseudo-fields …

Evolution of Weyl orbit and quantum Hall effect in Dirac semimetal Cd3As2

C Zhang, A Narayan, S Lu, J Zhang, H Zhang… - Nature …, 2017 - nature.com
Owing to the coupling between open Fermi arcs on opposite surfaces, topological Dirac
semimetals exhibit a new type of cyclotron orbit in the surface states known as Weyl orbit …

Topological semimetal nanostructures: From properties to topotronics

AQ Wang, XG Ye, DP Yu, ZM Liao - ACS nano, 2020 - ACS Publications
Characterized by bulk Dirac or Weyl cones and surface Fermi-arc states, topological
semimetals have sparked enormous research interest in recent years. The nanostructures …

Cycling Fermi arc electrons with Weyl orbits

C Zhang, Y Zhang, HZ Lu, XC Xie, F Xiu - Nature Reviews Physics, 2021 - nature.com
The Weyl orbit refers to a new type of cyclotron orbit recently proposed in Weyl semimetals.
This is a surface–bulk hybrid orbit that can be modulated by thickness and external fields …