Superconductivity in a doped topological insulator (TI) is very interesting phenomenon and constitute new finding of the modern day condensed matter physics. Here we have investigated physical transport properties such an intercalated TI, namely, Bi$_2$Se$_3$ via strong coupling route. The unique bandstructure Bismuth Selenide with dirac cone strongly influenced intercalation by Silver (Ag) (Go...

The past decade has seen a proliferation of topological materials for both insulators and semimetals in electronic systems classical waves. Topological exhibit topologically protected band degeneracies, such as nodal points lines. Dirac line (DNLS), which own four-fold degeneracy, have drawn particular attention. DNLSs been studied but there is no photonic DNLS. Here this work, we provide new m...

The band structure of strongly correlated two-dimensional (2D) semimetal systems is found to be significantly affected by the spin-orbit coupling (SOC), resulting in SOC-induced Fermi surfaces. Dirac, Weyl and Majorana representations are used for the description of different semimetals, though the band structures of all these systems are very similar. We develop a theoretical approach to the b...

We present the theory of out-of-plane (or vertical) electron thermal-field emission from 2D semimetals. show that current-voltage-temperature characteristic is well-captured by a universal scaling relation applicable for broad classes semimetals, including graphene and its few-layer, nodal point semimetal, Dirac semimetal at verge topological phase transition line semimetal. Here an important c...

The current-voltage characteristics of a new range of devices built around Weyl semimetals has been predicted using the Landauer formalism. The potential step and barrier have been reconsidered for three-dimensional Weyl semimetals, with analogies to the two-dimensional material graphene and to optics. With the use of our results we also show how a Veselago lens can be made from Weyl semimetals...