Variable and reversible quantum structures on a single carbon nanotube

Abstract

The band gap of a semiconducting single wall carbon nanotube decreases and eventually vanishes leading to metalization as a result of increasing radial deformation. This sets in a band offset between the undeformed and deformed regions of a single nanotube. Based on the superlattice calculations, we show that these features can be exploited to realize various quantum well structures on a single nanotube with variable and reversible electronic properties. These quantum structures and nanodevices incorporate mechanics and electronics.

7 pages, 4 figures, To be appear in PRB

References in corpus (3)

• Electrical and Mechanical Properties of Twisted Carbon Nanotubes
• Conductance of Distorted Carbon Nanotubes
• The Effect of Structural Distortions on the Electronic Structure of Carbon Nanotubes

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• Exo-hydrogenated Single Wall Carbon Nanotubes
• Supersymmetry in carbon nanotubes in a transverse magnetic field
• Analysis of band-gap formation in squashed arm-chair CNT
• Luttinger liquid superlattices: realization of gapless insulating phases
• Confined states in multiple quantum well structures of Si${}_n$Ge${}_n$ nanowire superlattices
• Multiple Localized States and Magnetic Orderings in Partially Open Zigzag Carbon Nanotube Superlattices: An Ab Initio Study
• Local Semiconducting Transition in Armchair Carbon Nanotubes: The Effect of Periodic Bi-site Perturbation on Electronic and Transport Properties of Carbon Nanotubes
• Electron transport in crossed nanotubes with point contact