Modulation of electronic states in semiconducting carbon-nanotubes with external electrodes

Mikio Murata, Mikio Eto

Research output: Contribution to journalArticle

Abstract

Electronic states are theoretically studied in carbon-nanotubes with external electrodes. To elucidate effects of the electrodes, we examine roles of external modulating potentials. In metallic nanotubes, the potentials hardly affect the energy levels nor envelope functions of the wavefunctions. In semiconducting nanotubes, however, the external potentials significantly influence the electronic states: With increasing the strength of the potentials, the energy gap decreases to zero, whereas the wavefunctions are more localized.

Original languageEnglish
Pages (from-to)384-385
Number of pages2
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume17
Issue number1-4
DOIs
Publication statusPublished - 2003 Apr

Fingerprint

Carbon Nanotubes
Electronic states
Wave functions
Nanotubes
Carbon nanotubes
carbon nanotubes
Modulation
modulation
Electrodes
electrodes
electronics
Electron energy levels
nanotubes
Energy gap
envelopes
energy levels

Keywords

  • Carbon-nanotube
  • Coulomb oscillation
  • Effective-mass approximation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Modulation of electronic states in semiconducting carbon-nanotubes with external electrodes. / Murata, Mikio; Eto, Mikio.

In: Physica E: Low-Dimensional Systems and Nanostructures, Vol. 17, No. 1-4, 04.2003, p. 384-385.

Research output: Contribution to journalArticle

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