The intrinsic magnetic topological insulator, Mn (Bi1− xSbx) 2Te4, has been identified as a
Weyl semimetal with a single pair of Weyl nodes in its spin-aligned strong-field …

The layer-dependent Chern number (C) in MnBi 2 Te 4 is characterized by the presence of a
Weyl semimetal state in the ferromagnetic coupling. However, the influence of a key factor …

As the thickness of a three-dimensional (3D) topological insulator (TI) becomes comparable
to the penetration depth of surface states, quantum tunneling between surfaces turns their …

The paired top and bottom Dirac surface states, each associated with a half-integer quantum
Hall (QH) effect, and a resultant integer QH conductance (ν e 2/h), are hallmarks of a three …

We theoretically investigate quantum phase transitions from topologically non-trivial to trivial
states in three-dimensional hybridized topological insulator (TI) ultra-thin films. The interplay …

Abstract Bismuth selenide (Bi 2 Se 3) is a semiconductor presenting two distinct crystalline
phases with distinct bandgap and interesting optical, thermoelectric and topological …

Abstract Three-dimensional (3D) topological insulators (TIs) have generated tremendous
research interest over the past decade due to their topologically-protected surface states …

We investigate the electron states and optical absorption in square-and hexagonal-shaped
two-dimensional (2D) HgTe quantum dots and quantum rings in the presence of a …

In this paper, we theoretically investigate the topological aspects of a 3D ultrathin topological
insulator in the presence of an irradiated off-resonant circularly-polarized light field. Based …

As the thickness of a three-dimensional (3D) topological insulator (TI) becomes comparable
to the penetration depth of the surface states, quantum tunneling between surfaces turns …