Electronic structure of carbon nanotube thin films with nanoscale interfaces under an electric field

2017 ◽  
Vol 56 (6S1) ◽  
pp. 06GE02 ◽  
Author(s):  
Taketo Kochi ◽  
Susumu Okada
Keyword(s):  
Thin Films ◽  
Electronic Structure ◽  
Carbon Nanotube ◽  
Electric Field ◽  
Nanoscale Interfaces

Robustness of the electronic structure and charge transfer in topological insulator Bi2Te2Se and Bi2Se2Te thin films under an external electric field

2020 ◽  
Vol 22 (7) ◽  
pp. 3867-3874 ◽  
Author(s):  
Yurong Ruan ◽  
Lu Huang ◽  
Yanmin Yang ◽  
Guigui Xu ◽  
Kehua Zhong ◽  
...  
Keyword(s):  
Thin Films ◽  
Electronic Structure ◽  
Charge Transfer ◽  
Electric Field ◽  
External Electric Field ◽  
Topological Insulator ◽  
Electrical Field ◽  
External Electrical Field

The electronic structure and charge transfer of Bi2Te2Se and Bi2Se2Te thin films are robust to an external electrical field.

AB INITIO CALCULATIONS OF ELECTRONIC STRUCTURE AND OPTICAL SPECTRA OF (13-0) CARBON NANOTUBE

2011 ◽  
Vol 10 (04n05) ◽  
pp. 587-590 ◽  
Author(s):  
TAYEBEH MOVLAROOY ◽  
S. M. HOSSEINI ◽  
A. KOMPANY ◽  
N. SHAHTAHMASEBI
Keyword(s):  
Electronic Structure ◽  
Carbon Nanotube ◽  
Electric Field ◽  
Energy Loss ◽  
Loss Function ◽  
Optical Spectra ◽  
Full Potential ◽  
Tube Axis ◽  
Weak Anisotropy ◽  
Energy Loss Function

We present a first principle calculation on the electronic structure and the linear optical properties of (13-0) zigzag single walled carbon nanotube by using full potential linear augmented plane wave (FP-LAPW) method. It is found that zigzag (13-0) nanotube has semiconducting behavior with the band gap of 0.6 eV at Γ point. The optical spectra of (13-0) carbon nanotube have been calculated for both electric field polarizations, parallel and perpendicular to the tube axis. The dielectric function is found to be highly anisotropic and is much larger for the electric field applied along the tube axis than the perpendicular. The results show that unlike the optical absorption, the energy loss function of (13,0) SWCNT show weak anisotropy. It was also revealed that the energy loss function peaks for both electric fields happen almost at the same energies, but with rather difference in their amplitudes.

Biaxial strain, electric field and interlayer distance-tailored electronic structure and magnetic properties of two-dimensional g-C3N4/Li-adsorbed Cr2Ge2Te6 van der Waals heterostructures

2021 ◽  
Vol 23 (10) ◽  
pp. 6171-6181
Author(s):  
Yaoqi Gao ◽  
Baozeng Zhou ◽  
Xiaocha Wang
Keyword(s):  
Magnetic Properties ◽  
Electronic Structure ◽  
Electric Field ◽  
Van Der Waals ◽  
Interlayer Distance ◽  
Two Dimensional ◽  
Biaxial Strain ◽  
Van Der Waals Heterostructures

It is found that the biaxial strain, electric field and interlayer distance can effectively modulate the electronic structure and magnetic properties of two-dimensional van der Waals heterostructures.

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