The electric-field-induced quantum phase transition from topological to conventional
insulator has been proposed as the basis of a topological field effect transistor,,–. In this …

Abstract Trisodium bismuthide (Na3Bi) is the first experimentally verified topological Dirac
semimetal, and is a 3D analogue of graphene hosting relativistic Dirac fermions. Its …

Three-dimensional topological semimetals are a class of electronic materials in which their
bulk and surface states contain linear band touching nodes near the Fermi level. Like …

Three-dimensional (3D) topological Dirac semimetal, when thinned down to 2D few layers,
is expected to possess gapped Dirac nodes via quantum confinement effect and …

A vibrant research field in condensed matter is the study of topological materials, which
range from topological insulators to Dirac semimetals and Weyl semimetals. Na 3 Bi is …

The extent to which disorder influences the properties of topological semimetals is relevant
to the understanding of topological states and their use in practical applications. Using …

Chalcogen vacancies in transition metal dichalcogenides are widely acknowledged as both
donor dopants and as a source of disorder. The electronic structure of sulphur vacancies in …

Bulk Dirac semimetals (DSMs) exhibit unconventional transport properties and phase
transitions due to their peculiar low-energy band structure, yet the electronic interactions …

The atomically clean surface of the iron-based superconductor Fe Te 0.55 Se 0.45 is
investigated by low-temperature scanning tunneling microscope (STM) with different tip …

We experimentally measure the band dispersions of topological Dirac semimetal Na 3 Bi
using Fourier-transform scanning tunneling spectroscopy to image quasiparticle interference …