Tetradymites are M 2 X 3 compounds—in which M is a group V metal, usually Bi or Sb, and
X is a group VI anion, Te, Se or S—that crystallize in a rhombohedral structure. Bi 2 Se 3, Bi …

Topological insulators (TIs) hold promise as a platform for unique quantum phenomena.
However, realizing these phenomena experimentally requires sophisticated devices. In this …

Topological insulators represent a new quantum state of matter which is characterized by
peculiar edge or surface states that show up due to a topological character of the bulk wave …

An exchange gap in the Dirac surface states of a topological insulator (TI) is necessary for
observing the predicted unique features such as the topological magnetoelectric effect as …

The massless Dirac fermions residing on the surface of three-dimensional topological
insulators are protected from backscattering and cannot be localized by disorder, but such …

We perform time-and angle-resolved photoemission spectroscopy of a prototypical
topological insulator (TI) Bi 2 Se 3 to study the ultrafast dynamics of surface and bulk …

We review theoretical and experimental highlights in transport in two-dimensional
topological materials over the last five years. Topological materials comprise topological …

Surface states of three-dimensional topological insulators exhibit the phenomenon of spin–
momentum locking, whereby the orientation of an electron spin is determined by its …

Recent progress in topological insulating materials predicts a promising future for their
applications in developing innovative quantum, electronic, and optoelectronic devices. The …

The three-dimensional topological insulator is a novel state of matter characterized by two-
dimensional metallic Dirac states on its surface. To verify the topological nature of the …