Title :
Electric field effect on the density of states of open single-walled carbon Nanotubes
Author :
Huang, N.Y. ; Wang, X.F. ; Liang, S.D. ; Xu, N.S.
Author_Institution :
State Key Lab. of Optoelectron. Mater. & Technol., Zhongshan Univ., Guangzhou, China
Abstract :
The electric field effect on the density of states (DOS) and the local density of states (LDOS) of open single-walled carbon Nanotubes (SWNT) are studied by the lattice Green´s function method with the tight-binding approximation. We have found that the particle-hole symmetry of the density states is broken by application of field, for both armchair and zigzag SWNT.
Keywords :
Green´s function methods; carbon nanotubes; electric field effects; electronic density of states; tight-binding calculations; C; DOS; SWNT; electric field effect; lattice Green function method; local density of states; open single-walled carbon Nanotubes; particle-hole symmetry; tight-binding approximation; Carbon nanotubes; Displays; Electron sources; Green´s function methods; Laboratories; Lattices; Mechanical factors; Nanostructured materials; Organic materials; Physics;
Conference_Titel :
Vacuum Microelectronics Conference, 2003. Technical Digest of the 16th International
Conference_Location :
Osaka, Japan
Print_ISBN :
4-8181-9515-4
DOI :
10.1109/IVMC.2003.1223015
