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Short‐wavelength charge oscillations in semiconducting carbon nanotubes
Author(s) -
Léonard François
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200303235
Subject(s) - carbon nanotube , tight binding , perturbation theory (quantum mechanics) , charge (physics) , atom (system on chip) , oscillation (cell signaling) , polyatomic ion , ion , wavelength , molecular physics , chemical physics , materials science , carbon nanotube quantum dot , nanotechnology , atomic physics , condensed matter physics , physics , nanotube , chemistry , quantum mechanics , electronic structure , optoelectronics , biochemistry , computer science , embedded system
Abstract Self‐consistent tight‐binding calculations for Carbon Nanotube devices have shown large oscillations of the charge from atom to atom. To explain this effect, we present a linear response theory for semiconducting carbon nanotubes subject to an external electrostatic potential perturbation. Within tight‐binding theory, it is demonstrated that the large charge oscillations originate from the polyatomic nature of the unit cell. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)