Energy-Band Structure and Density of States of Composite Lattice Two-Dimensional Graphene Plasmon Polariton Crystals

2017 ◽  
Vol 54 (5) ◽  
pp. 052401
Author(s):  
邱平平 Qiu Pingping ◽  
邱伟彬 Qiu Weibin ◽  
林志立 Lin Zhili ◽  
陈厚波 Chen Houbo ◽  
任骏波 Ren Junbo ◽  
...  
Keyword(s):  
Band Structure ◽  
Density Of States ◽  
Energy Band ◽  
Energy Band Structure ◽  
Two Dimensional ◽  
Plasmon Polariton ◽  
Composite Lattice

scholarly journals Energy Band Structure and its Characteristics of a Two-Dimensional Metallic Photonic Crystal

2011 ◽  
Vol 66 (5) ◽  
pp. 339-344
Author(s):  
Xianfeng Bao ◽  
Duanzheng Yao
Keyword(s):  
Photonic Crystal ◽  
Band Structure ◽  
Energy Band ◽  
Lattice Structure ◽  
Energy Band Structure ◽  
Square Lattice ◽  
Two Dimensional ◽  
Simulation Results ◽  
Difference Time ◽  
Metallic Photonic Crystal

The energy band structure and its characteristics of a two-dimensional metallic photonic crystal with square lattice structure have been studied by using the finite-difference time-domain (FDTD) algorithm. In order to determine the band structure accurately, the spatial distribution of the eigenfunction has been analyzed. By comparing the distribution of different wave vectors and of different energy band eigenmodes, an effective method to determine the band structure was found, which has been verified by the simulation results.

scholarly journals Study of structural and electronic properties of intercalated CrTiS2 compound by density functional theory

2021 ◽  
Vol 5 (2) ◽  
pp. 116-125
Author(s):  
V.B. Parmar ◽  
A.M. Vora
Keyword(s):  
Density Functional Theory ◽  
Band Structure ◽  
Electronic Properties ◽  
Density Of States ◽  
Energy Band ◽  
Density Functional ◽  
Energy Band Structure ◽  
Total Density ◽  
Metallic Behavior ◽  
Functional Theory

In the present paper, we report the structural optimization of intercalated CrTiS2 compound by using Density Functional Theory (DFT) with Generalized Gradient Approximation (GGA) through Quantum ESPRESSO code. All the computations are carried out by using an ultra-soft pseudopotential. The effect of charge transfer from guest 3d transition metal Cr-atom to self-intercalated compound TiS2 has been studied. In electronic properties, the energy band structure, total density of states (TDOS), partial density of states (PDOS) and Fermi surface have carried out. From the energy band structure, we conclude that the TiS2 -intercalated compound has a small bandgap while the doped compound with guest Cr-atom has metallic behavior as shown form its overlapped band structure.

Sign in / Sign up

Export Citation Format

Share Document