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Start Over Author "Bezryadin, Alexey" Journal science
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3. H/e Magnetic Flux Modulation of the Energy Gap in NanotubeQuantum Dots.

Author

Coskun, Ulas C., Wei, Tzu-Chieh, Vishveshwara, Smitha, Goldbart, Paul M., and Bezryadin, Alexey

Subjects
*ENERGY-band theory of solids, *NANOTUBES, *ELECTRONICS, *BAND gaps, *SPECTRUM analysis, *TRANSISTORS
Abstract

We report experiments on quantum dot single-electron-tunneling (SET) transistors made from short multiwall nanotubes and threaded by magnetic flux. Such systems allow us to probe the electronic energy spectrum of the nanotube and its dependence on the magnetic field. Evidence is provided for the interconversion between gapped (semiconducting) and ungapped (metallic) states. Our tubes exhibit h/e-period magnetic flux dependence, in agreement with simple tight-binding calculations. [ABSTRACT FROM AUTHOR]

Published
2004
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