Cohesive band structure of carbon nanotubes for applications in quantum transport

Nanoscale ◽  
2013 ◽  
Vol 5 (22) ◽  
pp. 10927 ◽  
Author(s):  
Vijay K. Arora ◽  
Arkaprava Bhattacharyya
Keyword(s):  
Carbon Nanotubes ◽  
Band Structure ◽  
Quantum Transport ◽  
Structure Of Carbon Nanotubes

BAND STRUCTURE AND ELECTRON VELOCITY MEASUREMENT IN CARBON NANOTUBES AND GRAPHENE

2009 ◽  
Vol 23 (12n13) ◽  
pp. 2655-2664
Author(s):  
ROBIN J. NICHOLAS ◽  
KAI-CHIEH CHUANG
Keyword(s):  
Carbon Nanotubes ◽  
Band Structure ◽  
Cyclotron Resonance ◽  
Dirac Point ◽  
Electron Velocity ◽  
Coulomb Interactions ◽  
A Value ◽  
Number Of Layers ◽  
Structure Of Carbon Nanotubes

We discuss recent measurements of the interband spectrocopy of carbon nanotubes and studies of cyclotron resonance in graphene, using these to examine the possible dependence of the band structure of graphene on the number of layers present and the role of Coulomb interactions. Cyclotron resonances gives a value for the electron velocity at the Dirac point of 1.093×106 ms-1, which is ~ 20% larger than would be expected from deductions of the band structure of carbon nanotubes. In addition, a significant asymmetry exists between band structure for electrons and holes, which gives rise to a 5% difference between the velocities at energies of 125 meV away from the Dirac point.

ELECTRONIC BAND STRUCTURE OF CARBON NANOTUBES WITH QUINOID STRUCTURE

2013 ◽  
Vol 27 (25) ◽  
pp. 1350179
Author(s):  
NGUYEN NGOC HIEU ◽  
NGUYEN PHAM QUYNH ANH
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Band Structure ◽  
Electronic Band Structure ◽  
Tight Binding ◽  
Electronic Energy ◽  
Electronic Band ◽  
Tight Binding Approximation ◽  
Quinoid Structure ◽  
Structure Of Carbon Nanotubes

In this paper, we fully describe the geometry of atomic structure of carbon nanotube with quinoid structure. Electronic energy band structure of carbon nanotubes with quinoid structure is studied by tight-binding approximation. In the presence of bond alternation, calculations show that only armchair (n, n) carbon nanotube (without twisting) remains metallic and zigzag (3ν - 1, -3ν + 1) CNT becomes metallic at the critical elongation. Effect of deformation on the change of band gap is also calculated and discussed.

Direct Measurement of Strain-Induced Changes in the Band Structure of Carbon Nanotubes

2008 ◽  
Vol 100 (13) ◽  
Author(s):  
Mingyuan Huang ◽  
Yang Wu ◽  
Bhupesh Chandra ◽  
Hugen Yan ◽  
Yuyao Shan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Band Structure ◽  
Direct Measurement ◽  
Induced Changes ◽  
Structure Of Carbon Nanotubes

Curvature effects in the band structure of carbon nanotubes including spin–orbit coupling

2015 ◽  
Vol 27 (44) ◽  
pp. 445501 ◽  
Author(s):  
Hong Liu ◽  
Dirk Heinze ◽  
Huynh Thanh Duc ◽  
Stefan Schumacher ◽  
Torsten Meier
Keyword(s):  
Carbon Nanotubes ◽  
Band Structure ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Curvature Effects ◽  
Structure Of Carbon Nanotubes
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